Blood Glucose Meters

Description

Blood glucose meters are handheld instruments that detect glucose levels in blood samples. The devices are used primarily by diabetics.

There are continuous and discrete (single-test) meters on the market today. In addition, continuous meters are available by prescription. These use a subcutaneous electrochemical sensor to measure at a programmed interval.

Single-test meters use electrochemical or optical reflectometry to measure the glucose level in units of mg/dL or mmol/L. The majority of blood glucose meters are electrochemical. Electrochemical test strips have electrodes to which a precise bias voltage is applied. The applied voltage causes an electrochemical reaction on the test strip with the resulting current being proportional to the glucose in the blood. The current is then converted to a glucose scale for display.

Each packet of test strips contains a calibration code that must be entered into the meter for calibration purposes prior to use, although some newer test strip designs have eliminated the calibration step.

Please click the "Design Considerations," "Circuits," and "Block Diagrams" tabs above for information that will help you build your design.


A blood glucose meter is a handheld instrument that consists of an electrochemical sensor and a battery-powered embedded system with a display that reads the sensor, processes the sensor reading, displays it, and optionally stores it.

These meters require very precise analog processing in order to determine the glucose level of the sample. Both optical-reflectometry and electrochemical meters need to resolve currents in the single-digit nano-amp range. The devices are generally accurate within a narrow temperature range, so accurate temperature measurement is also required.

Many new designs store readings and can communicate the readings to a PC or smartphone for record keeping.

Electrochemical Test-Strip Configurations


Most test strips are proprietary and vary by meter manufacturer. The variations include the reagent formulation, the number of electrodes, the number of channels, and biasing method of the reagent. The simplest configuration is a self-biased test strip (Figure 1) that has two electrodes with current measured at the working electrode and the common electrode grounded.

Figure 1. Electrochemical test strip in a self-biased configuration
Figure 1. Electrochemical test strip in a self-biased configuration

There can be multiple channels on a single test strip; the additional channels are used for a reference measurement, initial blood detection, or to ensure that the blood has saturated the reaction site. An alternate configuration actively drives both electrodes and measures at the common electrode. Another more advanced design is a counter configuration (Figure 2).

Figure 2. Electrochemical test strip in a counter configuration
Figure 2. Electrochemical test strip in a counter configuration

Here there are three electrodes with current measured at the working electrode, and a force-sense circuit drives the common and reference electrodes. There is an important advantage to this configuration: the bias voltage at the reaction site on the test strip is set and maintained more accurately throughout the measurement. The disadvantage of this design is its additional complexity and the larger headroom required to allow the force-sense amplifier to swing negative to maintain the bias voltage during current flow.

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Sensor Analog Signal Chain


Both optical-reflectometry and electrochemical meters need to resolve currents in the single-digit nano-amp range. To meet the error budget for a meter, components must have extremely low leakage and drift over supply voltage, temperature, and time once the meter has been calibrated during manufacture. An operational amplifier's key specifications are ultra-low input bias current (< 1nA), high linearity, and stability when connected to a capacitive electrochemical test strip. The operational amplifier is typically configured as a TIA for both types of meters. A voltage reference's key specifications include a temperature coefficient less than 50ppm/°C, low drift over time, and good line and load regulation. A 10- or 12-bit DAC is used to set the bias voltage for an electrochemical test strip and to set the LED current for an optical-reflectometry test strip. Sometimes a comparator is employed with electrochemical test strips to detect when blood has been applied to the test strip. This saves power while waiting for blood to be applied to the test strip, and ensures that the reaction site is fully saturated with blood. The ADC requirements vary depending on the type of meter, but most require ≥ 14-bit resolution and low noise for repeatable results. Sometimes 12-bit resolution is used when there is a programmable gain stage before the ADC to extend the dynamic range.

Part Selection

Maxim offers precision single-chip data acquisition systems (DAS) that integrate all the functionality discussed in the previous sections. Our recommended DAS ICs are designed to meet the specifications and performance required in blood glucose meters. These DAS ICs are also suitable for similar applications such as coagulation and cholesterol meters. Click the DAS block in the block diagrams to view recommended products.

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Temperature Measurement


Ideally, the temperature of the blood on the test strip should be measured, but usually the ambient temperature near the test strip is measured. Temperature measurement accuracy varies by test-strip type and chemistry, but is typically in the ±1°C to ±2°C range. This measurement can be accomplished with stand-alone temperature-sensor ICs, or with a remote thermistor or PN junction together with an ADC. Using a thermistor in a half-bridge configuration driven by the same reference as the ADC provides more accurate results because this design eliminates any voltage-reference errors. Remote or internal PN junctions can be measured with highly precise integrated analog front-ends (AFEs).

Part Selection

Maxim's single-chip DAS ICs offer integrated temperature sensors that provide the required level of accuracy for this application.

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User Interface: Display, Audio


Most blood glucose meters use a simple liquid-crystal display (LCD) with approximately 100 segments that can be driven with an LCD driver integrated in the microcontroller. Color displays require additional and higher voltages than both the segment LCDs. Backlighting can be added by using one or two white LEDs.

Audible indicators range from simple buzzers to more advanced talking meters for the vision impaired. A simple buzzer can be driven by one or two microcontroller port pins with pulse-width modulation (PWM) capability. More advanced voice indicators and even voice recording for test result notes can be achieved by adding an audio codec along with speaker and microphone amplifiers.

Part Selection

Maxim offers step-up switching regulators that might be required to power the LCD display and high-brightness LED drivers for display backlighting applications. Click the block diagram to view recommended products.

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Electrostatic Discharge


All meters must pass IEC 61000-4-2 electrostatic discharge (ESD) requirements. Using electronics with built-in ESD protection or adding ESD line protectors to exposed traces can help meet this requirement.

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Power and Battery Management


Meters with simple displays can run directly off of a single lithium coin cell or two alkaline AAA primary batteries. To maximize battery life, this meter requires electronics capable of running from 3.6V down to 2.2V for the lithium coin cell or 1.8V for the alkaline AAAs. If the electronics require a higher or regulated supply voltage a step-up switching regulator can be used. Powering down the switching regulator during sleep mode and running directly off the batteries extends battery life, as long as the sleep circuitry can run from the lower battery voltages. Adding a backlit or a more advanced display will require higher and sometimes additional voltages. A more advanced power management scheme may be required at this point. Rechargeable batteries such as single-cell lithium ion (Li+) can be used by adding a battery charger and fuel-gauge circuitry. Charging with USB is a convenient option for the user, if USB is available in the meter.

Part Selection

Maxim offers several power regulation and battery management circuits for this application. The exact products for a design will depend on the size and type of battery that is selected.

Please see the block diagram and click on the power supply and battery symbols to view recommended Maxim ICs for this application.

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Using the MAXQ1061 – Part 3: Building and Compiling

In the third video of this series, we show how to build the SDK. At the end, you’ll learn how to modify the source code, compile it, and see the effect on the MAXQ1061-KIT.

Learn more › MAXQ1061-KIT

Using the MAXQ1061 – Part 2: Software Installation

In the second video of this series, we show how to connect to the SFTP site to download the software development kit (SDK) for the MAXQ1061-KIT. We review the basic configuration for the Raspberry Pi and run a simple command for checking for a proper hardware connection. In the next video, “Using the MAXQ1061 – Part 3: Building and Compiling,” you’ll learn how to modify the source code.

Learn more MAXQ1061-KIT ›

Using the MAXQ1061 – Part 1: Unboxing and Hardware Setup

In the first video of this series, we unbox the evaluation kit for the MAXQ1061 DeepCover® Cryptographic Controller for Embedded Devices, demonstrate proper handling and make the necessary connections. In the next video, “Using the MAXQ1061 – Part 2: Software Installation,” you’ll learn how to configure the software.

Learn more › MAXQ1061-KIT

How to Add LED Indicators to Your Battery Fuel Gauge with the MAX17263

Travis explains how to use the MAX17263 for both fuel gauging and driving an LED battery indicator. He explains the concept of Charlieplexing LED circuits and demonstrates the flexible features and simple GUI of the MAX17263GEVKIT.

Learn More › MAX17263

How to Stay Cool with the MAX30205 as a Stand-Alone Thermostat

Darragh demonstrates how to test the overtemperature and hysteresis functions of the MAX30205 human body temperature sensor by using the MAX30205EVSYS to signal the MAX32630FTHR microcontroller board to switch a fan on and off.

Learn More › MAX30205

How to Talk to Peripheral Devices through a SerDes Link in Bypass Mode

Darragh explains how to operate a serializer-deserializer link in I2C bypass mode to control remote peripherals, and demonstrates remote light sensing with the MAX9281 and MAX9276A.

Learn more › GMSL SerDes ICs

How to Amp Up Your Sound with the MAX98400A 40W Class D Amplifier

Katie demonstrates the operation of the MAX98400A stereo, high-power, Class D amplifier using the MAX98400AEVKIT and a boom box setup. Stereo audio (20W per speaker) and mono audio (40W) capabilities are both used to demonstrate direct speaker driving and filtered output driving.

Learn More › MAX98400A
Read App Note › Pack Your Music and Upcycle That Old Suitcase

How to Set Up the MAX32631-EVKIT Using Eclipse on a Mac

Venkatesh shows how to set up Maxim's Arm® Microcontroller Toolchain in Eclipse on a Mac. He runs a demo program using the MAX32631-EVKIT, which evaluates the MAX32630/MAX32631/MAX32632 DARWIN ultra-low-power Arm Cortex®-M4 with FPU-based microcontrollers.

Learn More › MAX32631-EVKIT

How to Program the MAX7360 Key Switch Controller using Mbed®

Venkatesh shows how to interface a microcontroller with the MAX7360 using the Mbed environment. He then demonstrates how to use the MAX32625PICO to monitor key switches connected to the MAX7360.

Learn More ›

Battery Charging with the MAX20094/MAX20095 Backup Battery Charger and Boost Controllers

Chikira shows how to charge a lithium-ion battery with the MAX20094/MAX20095 integrated backup battery charger and boost controllers using the MAX20094EVKIT and associated GUI.

Learn more › MAX20094
Learn more › MAX20095

Linear Regulators

Fundamentals of Linear Regulators: LDO to SEPIC

Learn the basics of linear regulators such as low-dropout (LDO) linear regulators and single-ended primary inductor converter (SEPIC) switch mode ICs, including their features, benefits, and topologies.

Learn more › Linear Regulators

Introduction to the MAX3522B/MAX3523 DOCSIS 3.1 Programmable Gain Amplifiers

This video provides an introduction to the MAX3522B and MAX3523 which are part of a family of pin for pin compatible high performance CATV upstream amplifier IC's.

IO-Link Solutions Demo – electronica 2018

Konrad shows how Maxim's IO-Link® solutions overcome today's challenges when designing for minimum power dissipation in the smallest solution size.

® solutions overcome today's challenges when designing for minimum power dissipation in the smallest solution size.

Overview of Temperature Sensors

In this video, learn the basic concepts of temperature sensors and using temperature sensing devices such as temperature switches, resistance temperature detectors (RTDs), and thermocouples.

Learn More > Temperature Sensors

Overview of Thermal Management and Fan Controllers

Learn about thermal management, examine fan controllers in detail, and see how signal conditioner products are used for non-IC temperature sensors.

Learn More > Temperature Sensors

Introduction to the MAX38888 Super Cap Regulator

This video provides an introduction to the MAX38888, a super cap back-up regulator designed to efficiently transfer power between the cap and supply rail.

Fundamentals of Pulse Oximeter Circuits

Fundamentals of Pulse Oximeter Circuits

Learn the fundamentals of pulse oximetry and photoplethysmography (PPG) for measuring heart rate and SpO2. We walk through the operation and critical design considerations for a fully integrated heart rate and SpO2 monitor, including ambient light cancellation and motion compensation algorithms. Common applications and solutions are presented.

Learn more ›

Introduction to the MAX20326 Dual Precision Bus Accelerator

This video provides an introduction to the MAX20326, a dual-channel, precision, open-drain, communication-line accelerator.

FPGA Data Converters

In this interview with Avnet, Xilinx and Maxim, we discuss the Xilinx demonstration platform and evaluation boards to expand the capability, and add on more functionality and features with Xilinx’s FMC connector. Maxim has created an FMC card to easily add signal chain to your Xilinx design.

FPGA 1-Wire Security

In this interview with Avnet, Xilinx and Maxim, we discuss how to protect your FPGA IP with SHA-1 authentication and 1k bit memory solution for less than $1.00 for 1000 unit volume.

MAX98355/MAX98356 Product Features

These easy digital input amps can lower both power consumption and costs. They’re immune to the noise that plagues analog amps, so you can place them far from the hub; but unlike other digital amps, they need no master clock source.

MAX98090 Fully Integrated Audio CODEC

Achieve better audio quality and longer battery life, all in a smaller form factor. Six input pins let you accept up to three microphone signals; FlexSound™ DSP gives you a 7-band parametric equalizer, gain control, dynamic range control and more.

ModelGauge Fuel Gauges

Give batteries a longer life—and end users a great reason to be satisfied. Let a Maxim expert guide you through the latest battery “fuel gauge” developments, and learn why a great fuel gauge can be key to any battery-powered product’s success.

Learn more: ModelGauge Battery Fuel Gauge Technology ›

DS28E35 DeepCover® Secure Authenticator

“Hacking” traditionally means software, but malicious counterfeit hardware can wreak even more damage. Now see how the DeepCover platform powers rock-solid hardware integrity authentication that’s also ingeniously simple to design in.

Integrated Healthcare Depends on Integrated Analog

Healthcare costs can be reduced through quality outpatient care. The key is prevention: Securely monitoring vital signs, but in a lifestyle-appropriate way. Enter analog integration, which dramatically reduces equipment cost and size.

PIXI PMOD Demo

Introducing PIXI, the first programmable mixed-signal I/O technology. First, get a peek at the PIXI PMOD’s easy drag-and-drop software GUI. Then see how versatile its 20 ports really are, helping to cut BOM costs and speed time to market.

Add Counterfeit Protection with Maxim's DeepCover® Secure Authenticators

Explore new breakthroughs in hardware-based counterfeit and IP authentication, courtesy of Maxim’s proprietary platform. Includes a deep dive into both traditional authentication methods and DeepCover’s much more comprehensive SHA-256-based approach.

MAX98091 Ultra-Low Power Stereo Audio Codec

The MAX98091 is a fully integrated ultra-low power stereo audio codec with 4 milliwatt playback power consumption.

MAX98090 Evaluation Board Quick Setup

Training on how to quickly set up the MAX98090 Evaluation board and GUI. The MAX98090 evaluation system let you quickly stream music through headsets and speakers and allows you to change gain, filters, and equalization graphically through an easy to use tool.

Make it Easy - Lite Waveform Generator

Sometimes you just need a portable, simple waveform generator for debugging or demos. This USB-powered generator plugs into your PC, with no wall power needed, and includes a GUI. It’s remarkably accurate, too—just watch the oscilloscope.

Maxim Power Solutions for Xilinx FPGAs

Here’s evidence that Maxim and Xilinx have been working closely together, to help you power up Xilinx FPGAs without a lot of time, budget, or power supply expertise. Minimize power dissipation and board space, and get to market sooner.

Learn more:  Xilinx Power Partnership ›

1-Wire® Contact Packages

Add functionality like memory or authentication to a peripheral, without bulky PCB-mounted pads. These tiny contact packages mount right on the peripheral at just 3.5mm x 6.5mm—no PCB needed. They’re more durable, simpler, and cheaper too.

The 4th Industrial Revolution Has Arrived

For years, Moore’s Law drove down the size and cost of processors; now, it’s reaching its limits. What’s next? Industry 4.0: Sensor and analog innovations that let PLCs sit closer to the machines they control. Learn how you can join the revolution.

Maxim's Micro PLC Demo Platform Meets Industry 4.0 Challenges

The Big Question: how to make a PLC 10X smaller. We did it, and we’ll show you how. See how analog takes up to 85% of the space on a typical board, and how new integration developments cut power use in half—while increasing throughput 70X.

Synchronous Power Conversion Technology

Synchronous Power Conversion Technology

www.maximintegrated.com/synchronous-converters

In The Lab: Himalaya Buck Converters

Introducing something new: Synchronous DC-DC converters that replace traditional asynchronous converters’ external diode with an integrated MOSFET. The result is a cooler, smaller, simpler solution that lowers your total system cost.

Learn more:  Himalaya Step-Down Switching Regulators ›

In The Lab: High-Efficiency Power Supply Reference Designs

Let's face it: with tighter schedules and the complexity of today's board designs, you're being asked to do a lot in a short amount of time.

Learn how we can help you meet these challenges with power supply reference designs that will get you to market sooner while saving cost, space and power. Features of these complete designs include industrial level input voltages, high efficiency operation, very small board size and programmable settings.

Learn more: Power Supply Reference Designs ›

EE Web Tech Lab – Secure Drug Delivery Solution

Some medications can cost thousands of dollars—inviting counterfeiting, which puts health care institutions, insurance companies, and of course patients at risk. This clever proposed in-vial security solution is based on Maxim’s Deep Cover platform.

Ultrasonic Flow Meter SoC: 10x More Accurate

Utilities today waste fully 30 percent of the water they pump. But with this new solid state flow meter SoC, you can easily design in more accurate water measurement, to give customers the accuracy mechanical meters have been missing.

Detecting and Diagnosing Grid Faults with Fewer False Triggers

Utilities lose $79 billion annually to power outages. Our high speed, high accuracy, high sampling rate ADCs can help utilities detect, diagnose, and locate faults and restore power quickly. This simulation of an intelligent distribution automation system demonstrates how our data converters can help characterize the nature of the faults, reduce the average interruption time by a third, and reduce power restoration time from 45 minutes to less than 3 minutes.

www.maximintegrated.com/IntegratedEnergy

Analog Measurement for Low Power, Low Noise Sensors

Measure temperature and weight more precisely, with lower power, in a smaller form factor. Detect wider ranges, too. These reference designs demonstrate why Maxim keeps on setting the bar for advanced, integrated industrial controls.

Fit Two Shirt: A Wearable Wellness Platform Example

Wearable electronics have the potential to improve lifestyles, from the active fitness enthusiast to those with chronic illnesses who need round-the-clock vital signs monitoring. The latest Fit Shirt demonstrates our wellness platform of products designed specifically for wearable electronics. Sensors built into the shirt gather data on heart rate, oxygen saturation, ECG, motion, respiration and body temperature. The on- board microcontroller delivers results to a tablet via Bluetooth, and advanced power management allows the battery to run for weeks at a time.

Smaller, Cooler, High-Voltage DC-DC Converters

Get heat dissipation 50% lower than any competing product! Keep designs smaller and cooler with these regulators that include integrated MOSFETS and compensation. This board features seven tiny regulators, from 100 milliamps to 3.5 amps.

Learn more: High-Voltage, High-Efficiency Buck Converters ›

Body Temperature Measurement: Send and Receive With Wearable NFC

Now your team can design devices that spot-measure the body’s core temperature with underarm tags, then “beam” it to a tablet. It’s an in-demand alternative to old-fashioned oral thermometers. Help customers beat hospital-borne infection.

Smallest 4-Channel I/O-Link Master and RGB Sensor

Like USB on an industrial scale, this “Quad Master” connects multiple sensor types to a central processing unit such as a Micro PLC—allowing the processing unit to provide valuable feedback to the sensors, and ultimately boosting productivity.

70x Faster Digital I/O Modules

Cut your digital I/O costs! Serialized input reduces design complexity, so you’re dealing with fewer components. Meanwhile, output processes data 70X faster than anything on the market, with 8 channels to drive legacy relays and switches.

Pulse Oximetry Measurement: Wearable Oxygen Monitor for Active Lifestyles

This pulse ox patch alerts COPD, allergy, and other patients to issues before they become life-threatening. It measures heart rate, heart valve operation, and oxygen level via optical signal and motion sensors.

Micro PLC: Cooler, Smaller, Faster

See how we cut PLC footprints by 10X and power consumption in half, with 70% faster throughput. The Micro PLC brings Industry 4.0 to life, putting controllers closer to the floor while slashing the annual $800 billion spent on maintenance.

Mobile POS: An Advanced Cryptographic and Physical Security Solution

Discover how to turn phones and tablets into POS acceptance devices. Based on our secure Deep Cover platform with a Cortex M3 core, this highly-integrated reference design can accept both smart (chip-based) and magnetic stripe cards.

Wellness Watch: A Wearable Wellness Platform Example

Built around Maxim’s family of medical microcontrollers, the Wellness Watch monitors heart rate, oxygen level, movement, position, temperature, and mood response. In addition to measuring body vital signs, the Wellness Watch has built-in security.

Beer Mug Factory: Maxim Integrated Industrial Products in Action

It’s Industry 4.0 in action. Watch as this fully-automated assembly line automatically creates a customized mug, complete with a token insert and individual signature, all controlled via handheld tablet. Analog integration makes it possible.

In the Lab: Analog Output Design Accelerator Kit

The components of an analog output must work seamlessly together. A purchased one can be complicated and incomplete; but building your own is a huge headache. Now there’s a third choice, with a power supply, diagnostics, schematics and a custom GUI.

In the Lab: Eliminate Flicker for MR16 LED Lighting

Designing circuits for MR16 LED lighting has two big challenges: dimming the lamp without flicker, and compatibility with electronic low-voltage transformers (ELVT). This video demonstrates how the MAX16840 LED Driver's current control scheme eliminates MR16 flicker at all dimming levels, even when used with a variety of electronic transformers.

Learn more: MAX16840 ›

In the Lab: Bluetooth Control of Power-over-Ethernet Lighting

See how simple it is to develop Power-over-Ethernet (PoE) based lighting. This video demonstrates an easy way to provide on/off and dimming control for an LED bulb using a smartphone with bluetooth connection. The simple design is made possible by the MAX5969 powered device controller and the MAX16832 high-voltage LED Driver IC.

Learn more:  Smart Lighting ›

In the Lab: IO-Link Smart Sensor System Demo

See how easy it is to get an IO-Link smart sensor system up and running with live data monitoring. Our 4-port IO-Link Master reference design (MAXREFDES79) leverages plug-and-play capability and the easy to use software GUI to monitor data from each of our four IO-link device modules: ambient light sensor (MAXREFDES23), proximity sensor (MAXREFDES27), RTD-to-digital sensor (MAXREFDES42), and 16-channel digital input (DI) hub (MAXREFDES36).

What is IO-Link?

Discover the benefits of the IO-Link smart sensor and actuator interface protocol. IO-Link is the new standard developed by an international consortium of hardware and software providers. IO-Link's remote programming capabilities and backwards compatibility enable direct factory upgrade from binary sensors to smart sensor functionality.

IO-Link Transceivers and Binary Drivers

How to Order Parts

How to Request a Quote

We Hear You

Maxim executives speak frankly about how we’ve re-energized our customer commitment, by rebuilding our systems, processes, supply chain, and organizational structure to deliver satisfaction every time. We’re listening. You’ll know it.

The Future of PoE LED Lighting

See examples of what the future holds for power over ethernet (PoE) LED lighting in the internet of things (IoT).

Learn more:  Smart Lighting ›

How to Find a Reliability Report

Solar Cell Optimizers Offer Huge Gains in Energy Harvesting

Solar Cell Optimizers provide huge gains in solar energy harvesting while simplifying installation and reducing overall cost. Our breakthrough technology embeds the MPPT function deep within each solar module, allowing more panels in the same space.

Surround View: From Fisheye to Birdseye

Surround View: From Fisheye to Birdseye

How to Submit a Sample Request Online

Solar Cell Optimizers Significantly Improve Module Performance

Learn how our solar cell optimizers improve solar cell performance by up to 20%. Unprecedented tolerance for inter-row shading allows the tightest row spacing. Our innovative technology prevents object shading hot-spots, extending the life of your modules. No special tools, hardware or wiring are required for installation.

Brushed DC Quad Motor Controller mbed Shield

What could you build with a brushed DC motor controller Arduino® shield? Our Arduino-compatible brushed DC motor driver reference design drives up to four motors, and easily interfaces to an mbed® platform. Featuring MAX14871, 4.5V to 36V full-bridge DC motor driver, MAXREFDES89 can be used with a wide range of motors, from mid-voltage down to battery powered. Watch this short video to see MAXREFDES89 in action.

Learn More: MAXREFDES89 ›

Micro PLC Universal Analog Input Card

The universal analog input is extremely popular in industrial systems. It accepts voltage, current, RTD and thermocouple inputs which provides flexibility for use in control and automation applications. Learn how our 24-bit universal analog input board makes use of the latest technologies and an innovative system architecture to simplify configuration and improve performance while reducing cost. All in an ultra-small Micro PLC form factor.

EE-Sim Design Requirements

How to set the Design Requirement specifications and create a schematic.

Learn more: EE-Sim Design and Simulation Tool ›

MAX38902EVKIT Board Photo

Evaluation Kit for the MAX38902A/MAX38902B/MAX38902C/MAX38902D (12μVRMS Low Noise 500mA LDO Linear Regulator)

EE-Sim Design Tradeoffs

Prioritize the design size, efficiency, or BOM cost based on your design needs. Learn how this selection is implemented in your schematic.

Learn more: EE-Sim Design and Simulation Tool ›

MAX98357, MAX98358, MAX98357/8, auto-configuring amp, auto-configuring digital class D amps, amplifier, class D amplifier, digital amplifier

Digital Input Class D Amplifiers Eliminate GSM Buzz

Our next generation digital input, Class D audio amplifiers provide the highest performance with superior noise immunity while simplifying design. These plug and play speaker amplifiers significantly reduce the number of components required compared to typical analog amplifier designs. Learn how we eliminate GSM buzz, simplify board design and reduce EMI while providing high 3.2W output power.

EE-Sim DC-DC Tool Overview

See a demonstration of the most commonly used functionality in EE-Sim. Includes opening a new DC-DC design, changing design requirements, creating a schematic, running simulations, comparing designs, and generating a report.

Learn more: EE-Sim Design and Simulation Tool ›

MAXREFDES73

Wearable Galvanic Skin Response System

Are you developing a wearable device? Galvanic skin response (GSR), or skin impedance, adds another dimension to health monitoring that is not captured by accelerometers and heart rate monitors. See how our GSR reference design captures non-aerobic effort for activities such as yoga.

Learn more: MAXREFDES73 ›

Smart Force Sensor Human Machine Interface Demo

Watch a demo of our new concept for human-machine interfaces. Traditional touchscreens are fragile and don’t work well with gloves. Our smart force sensor reference design measures mass and center of mass to provide location and downward force of the touch input. MAXREFDES82 is a rugged, low power design that works in harsh environments where gloves may be required and glass is not allowed.

Learn More: MAXREFDES82 ›

From the Meter Bar to the Band Gap Voltage Reference

Almost every electronic system incorporates a voltage reference. This tutorial will familiarize you with voltage references, their construction and performance. Zener and Band Gap technologies are discussed in detail, along with important performance parameters and recommended solutions for common circuit requirements.

Choose the Right Step-Up/Step-Down Voltage Regulator for Portable Applications

Portable devices are frequently powered by a single cell Lithium-Ion battery. The voltage swing from high to low after a full day's use presents a challenge for the loads powered by the battery, especially when the load requires a stable input voltage in the middle of the Lithium-Ion range of operation. This tutorial discusses this challenge and provides an optimum solution.

Learn More: Switching Regulators ›

Taking PC Security to a New Level

Learn how Design Shift, our design house partner, developed ORWL, a personal computer with physical security that utilizes the latest encryption methods to immediately detect tampering. The MAX32550 Cortex-M3 microcontroller with secure boot-loader is integrated into the motherboard to control power, interface with the display, communicate with the key fob and monitor the unit for tampering.

Learn more: MAX32550 ›

Buck Converter: The Power Train and LC Filter

The buck converter is considered by many to be the king of switching voltage regulators. Modern electronic designs frequently need to step a voltage source down to a value suitable to power a load while sustaining minimal losses. The buck converter is the simplest, most effective and most efficient way to achieve this goal. This technical tutorial reviews the theory and operation of the heart of the buck converter: the power train and LC filter.

Heart Rate Monitor Demo

Watch a live demo of a simple but accurate heart rate monitor design (MAXREFDES117) developed around our tiny, low-power heart rate sensor (MAX30102). Step-by-step instructions show you how to quickly set up and start receiving data using two popular development platforms–mbed® and Arduino®. Don't miss the bonus heart rate demo with the Adafruit Flora® wearable electronic platform!

Learn more: MAXREFDES117 ›

Cosmetic Sensor Demo

Cosmetic sensor demo with testimonials

Storefront Overview

Overview of the ecommerce storefront.

How to Submit a Formal Quote

Walkthrough of the quote request process in the ecommerce storefront.

How to Place an Order with an Approved Quote

Walkthrough of placing an order with an approved quote through the ecommerce storefront.

How to Place an Order

Walkthrough of the ordering process in the ecommerce storefront.

[Internal] Introduction to the MAX2175 RF to Bits Automotive Radio Tuner

This video provides an introduction to the MAX2175, an advanced analog/digital RF to Bits® radio receiver with front-end designed for remote tuner and software-defined radio solutions in automotive reception environments.

Cell-String Optimizers Enable Flexible PV System Design

Produce more energy and simplify the design of complex rooftops by using cell-string optimizers in place of traditional bypass diodes. All while continuing to use preferred inverter and BOM components with no change to your existing installation and commissioning process.

Solar Cell Optimizer Technology ›

Demo: Enable Trusted Sensors and Notification for IoT Applications

Watch as a web server authenticates or rejects a water filter sensor node and wifi enabled controller. This unique demonstration of MAXREFDES143 shows how authentication and data integrity can easily be added to an IoT ecosystem.

Learn more: MAXREFDES143 ›

Pocket IO: The New Pathway to Industry 4.0

Get a close-up look at the functions and innovative devices that enable the Pocket IO to put the power of Industry 4.0 in your pocket.

Learn more ›

Sneak Preview: Soccer Ball Factory

Get a glimpse of the Pocket IO in action in our Soccer Ball Testing and Personalization Factory, to be unveiled at electronica 2016.

Learn more ›

Pocket IO PLC Development Platform Setup and Demo

Follow step by step instructions to get up and running with your Pocket IO. Review kit contents, make connections, download the Arduino IDE, and install the libraries. Walk through an example sketch and see how to run examples for each of the Pocket IO blocks. By the end of the video, you'll be ready to start programming your own custom applications.

Learn more: MAXREFDES150

VR Engagement Sensor Demo

Our engagement sensors use heart monitoring technology to gauge excitement, stress, and engagement.

The Pocket IO Controls a Fischertechnik Robot

Using a tablet as the control pad, watch the MAXREFDES150 Pocket IO work with the MAX14870 motor drivers and the MAX14890 encoder receivers to control a Fischertechnik robot as it selects and stacks a series of colored blocks in a precise pattern.

Learn more: Pocket IO PLC Development Platform

Heat Map Comparison of IO-Link Device Transceivers

See how the efficiency of our new generation MAX14827 IO-Link device transceiver compares to its predecessor and to a competitive device as shown on a FLIR heatmap display.

Learn more: MAX14827

Meet the Health Sensor Platform

Learn about the MAXREFDES100 hSensor platform, a full reference design, development and demo platform for wearable applications. The extremely small form factor, including multiple sensors, power management, microcontroller and mbed support, allows you to rapidly prototype and demonstrate new wearable use cases.

Learn more: hSensor Platform

Pocket IO Redefines the PLC for Industry 4.0

Learn how the MAXREFDES150 Pocket IO is 30% more efficient and 2½ times smaller than previous PLC platforms. The Pocket IO is a complete industrial platform equipped with 30 IOs featuring three different sensor inputs and motor controls for manufacturing or process automation applications.

Learn more: Pocket IO PLC Development Platform

Meet the Health Sensor Platform

See a Glimpse of the Future at electronica 2016

Watch the highlights from electronica 2016 where we demonstrated the factory of the future using the Pocket IO PLC Development Platform. Featured segments include a soccer ball testing and personalization factory, precision control of robots, and detection of goal throws with light curtains.

Learn more: Pocket IO PLC Development Platform

Take a Virtual Tour of the electronica 2016 Booth

Catch a virtual look at this year's dynamic trade show booth at electronic 2016. We showcased new products for Industry 4.0, Wearables, and Automotive applications, highlighting innovative solutions of the future.

Learn more: electronica

Isolated Power-Supply Reference Designs Accelerate Prototyping

See how the MAXREFDES111-MAXREFDES116 24V isolated, industrial power-supply reference designs simplify design of isolated power supplies. These tested designs with pre-qualified Wurth transformers enable immediate board placement and prototyping. Each comes with tailored specifications including various output voltages, currents, and topologies to allow easy measurement with probes or design-in for prototypes. Each reference design has been tested for load and line regulation, efficiency, and transient performance.

Learn more: Reference Design Center ›

Remote Tuner Technology for Automotive Radio

Overcome the challenges of automotive radio design. Learn how our remote tuner solution, based on the MAX2175 RF-to-Bits tuner and GMSL SerDes technology, reduces cost, improves performance and simplifies head unit design.

Learn more: Remote Tuner Technology ›

Blood Pressure Trending Demo

MAX8971EVKIT Board Photo

Evaluation System for the MAX8971 (Industry's Smallest 1.55A 1-Cell Li+ DC-DC Charger)

EE-Sim Webscope Waveform Viewer

Customize the display of EE-Sim simulation waveforms for optimal analysis. Configurable parameters include signal color, order, and grouping; axis scaling, placement, and synchronization; marker quantity and labels; auto and manual zoom; and formats for saving data.

EZ Setup of MAX17201/MAX17211 ModelGauge m5 Stand-Alone Fuel Gauges

See how to maximize run-time of your battery powered device without the need for battery characterization. In this video, the inventor of the ModelGauge™ algorithm walks you through the m5 EZ configuration wizard using the MAX17201/MAX17211 evaluation kit. Get up and running quickly and easily while maintaining high accuracy fuel gauge performance.

Learn more: MAX17201/MAX17211 Evaluation Kit ›

Get Started with the MAX32630FTHR Board

Find out how easy it is to configure the MAX32630FTHR board to build new projects. Learn how to import a project, compile a program, download code and execute a program with the MAX32630FTHR board. This video shows how to use the compiler and editor software feature of the ARM® mbed™ developer site with the development platform.

Learn more: MAX32630FTHR ›

Using the MAXREFDES155 – Protecting the Internet of Things

Is your IoT system designed with the highest levels of security in place? Watch this video to learn how to protect your system from hackers by designing security in from the start with Maxim’s DeepCover® embedded security reference design.

The Heart of the System – DS2476 and DS28C36 (01:47)
Getting to know the MAXREFDES155 (02:30)
Authenticated Messages (04:34)
Authenticated Commands (05:32)
Bulk Data Transfer (06:24)

Learn more: MAXREFDES155 ›

nanoPower Boost Converter Demo

Watch a demonstration of the extremely low quiescent current and true shutdown capabilities of our nanoPower boost converter using the MAX17222 evaluation kit. nanoPower regulators are ideal for wearable and hearable applications that require ultra-small size and high efficiency.

See MAX17222EVKIT ›

Sometimes it’s Smart to Have a Low IQ

How do you stretch battery life? It doesn’t take a genius.

EZ Setup of MAX17055 ModelGauge m5 Low IQ Stand-Alone Fuel Gauge

See how to maximize run-time of your battery powered device without the need for battery characterization. In this video, the inventor of the ModelGauge algorithm walks you through the m5 EZ configuration wizard using the MAX17055 evaluation kit.

Learn more ›

Tour of New Search Features

Take a brief tour of the new features of Maxim's site search tool, designed to get you to the content you need, faster and easier. Let's get started!

Self Balancing Robot

[Internal] Introduction to the DS28C40 Deep Cover Automotive I2C Authenticator

This video provides an introduction to Maxim’s Secure Authenticator for Automotive – the DS28C40.

[Distributor] Introduction to the DS28C40 Deep Cover Automotive I2C Authenticator

This video provides an introduction to Maxim’s Secure Authenticator for Automotive – the DS28C40.

Dallas Hackathon 2016

Safeguard Your Connected Products with Turnkey Security

Learn how to easily add a robust layer of security to new or existing designs with the MAXQ1061 DeepCover® Cryptographic Controller for Embedded Devices. As cyberattacks become more prevalent, designers are increasingly faced with the challenge of protecting their embedded devices against malicious attackers. See how the MAXQ1061 not only protects new embedded devices but can also be added to existing designs, while providing secure key and certificate storage, secure firmware, and secure communication.

Learn more: MAXQ1061 ›

SC2200 and SC1894 RF Power Amplifier Linearizers

Learn the key differences between the SC2200 and SC1894 RF Power Amplifier Linearizer (RFPAL) devices. They are ideal for cellular infrastructure applications including small cell, remote radio head (RRH), antenna array systems (AAS), MIMO, broadcast transmitters, and microwave backhaul.

Learn more ›

[Distributor] Introduction to the MAX11192 12 Bit, 2Msps, Dual Simultaneous Sampling SAR ADC with Integrated Reference

This video provides an introduction to the MAX11192, MAX11195, and MAX11198, dual simultaneous sampling, 12-Bit, 2Msps ADCs with integrated reference.

Introduction to the MAX11192/95/98 12 Bit, 2Msps, Dual Simultaneous Sampling SAR ADC with Integrated Reference

This video provides an introduction to the MAX11192, MAX11195, and MAX11198, dual simultaneous sampling, 12-Bit, 2Msps ADCs with rntegrated reference.

Dual IO-Link Master Transceiver: MAX14819 Demo

Learn how the MAX14819 IO-Link master transceiver addresses key trends for industrial communications with over 50% lower power dissipation, robust communications in harsh environments, and a scalable, flexible architecture. See how easy it is to evaluate the MAX14819 using the MAXREFDES145 8-channel IO-Link master reference design as it communicates with an IO-Link proximity sensor.

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MAX77714EVKIT Board Photo

Evaluation Kit for the MAX77714 (Complete System PMIC, Featuring 13 Regulators, 8 GPIOs, RTC, and Flexible Power Sequencing for Multicore Applications)

MAX32625MBED Board Photo

MAX32625MBED ARM mbed Enabled Development Platform for the MAX32625 (Ultra-Low-Power Arm Cortex-M4 with FPU-Based Microcontroller (MCU) with 512KB Flash and 160KB SRAM)

[Internal] Introduction to the MAX22503E 100 Mbps Full Duplex 3V/5V RS-485/RS422 Transceiver with High EFT Immunity

This video provides an introduction to Maxim's 100 Mbps Full Duplex 3V/5V RS-485/RS422 Transceiver with High EFT Immunity - the MAX22503E.

[Distributor] Introduction to the MAX22503E 100 Mbps Full Duplex 3V/5V RS-485/RS422 Transceiver with High EFT Immunity

This video provides an introduction to Maxim's 100 Mbps Full Duplex 3V/5V RS-485/RS422 Transceiver with High EFT Immunity - the MAX22503E.

Understanding 4-20mA Data Transmission

Learn the core concepts behind 4-20mA data transmission, which is fundamental to the operation of loop-powered sensor transmitter devices.

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Automotive Gesture Demo

Automotive Lighting Demo

Overcome the Challenges of Automotive Radio Design

Watch as we demonstrate our Automotive Remote Tuner technology designed to simplify automotive radio head unit design. Our remote tuner architecture reduces the amount of cabling required and places remote tuners in close proximity to antennas while reducing noise and lowering power consumption. The demo walks through a sample system setup and operation utilizing the unique radio architecture.

Increase Battery Life and Efficiency with PMICs at Less Than Half the Size

Take a closer look at the MAX77650 and MAX77651 ultra-low power PMICs. Their extremely low standby power supports longer battery life—ideal for wearables, hearables, and IoT devices. We demonstrate the devices' low quiescent current and show a 9% increase in overall system efficiency gained using the MAX77650 evaluation kit.

Learn more: MAX77650

Introduction to the MAXM17532 4V to 42V, 100mA High Efficiency, DC-DC Step-Down Power Module with Integrated Inductor

This video provides an introduction to the MAXM17532, a 4V to 42V, 100mA High Efficiency, DC-DC Step-Down Power Module with Integrated Inductor.

Power Seminar: 24V+ Power Solutions--Power Design Doesn’t Get Any Cooler, Smaller, or Simpler

Introduction and agenda for the Power System Design Seminar series.

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Power Seminar Module 1: Introduction to Switching Regulators

Discussion of the concept and theory behind switching regulators and how they are used to build nonisolated power supplies.

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Power Seminar Module 2:  Introduction to Control Algorithms in Switching Regulators

An overview of how switching is controlled in switching regulators. Focuses on three popular control algorithms: constant on-time, voltage mode control and current-mode control.

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Power Seminar Module 3: Synchronous Switching Regulators

In-depth discussion of the operation of synchronous switching regulators, increasingly used to obtain higher power conversion efficiency.

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Power Seminar Module 4: Design of Filter Components

Highlights of some of the other components that make up a switch-mode power supply. Focuses on passive components such as inductors and capacitors.

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Power Seminar Module 5: Layout Considerations

PCB layout considerations:  layout differences can make a big impact on the performance of a power system design.

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Power Seminar Module 6: Example Design: Synchronous DC-DC Regulator Using the EE-Sim Design and Simulation Environment

Viral Vaidya, executive business manager for our industrial power solutions, walks through how to design a 24V+ power system using some of Maxim's latest synchronous switching regulators. Includes a demonstration of how to simulate the power system design using the online EE-Sim design and simulation environment.

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Multi-Socket Design-In Training

Monthly Technical Training: Multi-Socket Design-In Training July AM Session

High Speed Serial Links for Automotive Applications

In automotive applications, Maxim’s GMSL SerDes technology provides a compression-free alternative to Ethernet, delivering 10x faster data rates, 50% lower cabling costs, and better EMC compared to Ethernet. Maxim's GMSL chipsets drive 15 meters of coax or STP cabling thereby providing the margin required for robust and versatile designs. The links enable applications such as ADAS, Surround View, Digital Displays, Adaptive Cruise Control and more. This training gives an overview on the applications, introduces relevant Maxim GMSL chip sets and gives practical guidelines for successful design-in and measurements.

Power Seminar Module 7: Theory Behind Isolated DC-DC Solutions

Introduction to isolated DC-DC power supply design and the theory behind isolation.

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Power Seminar Module 8: Eliminating Optocouplers for Isolated DC-DC Designs

Introduction to the design of isolated power supplies without using optocouplers to bring secondary signals back to the primary enabling regulation.

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Power Seminar Module 9: Practical Design Considerations for an Iso-Buck Converter

How to design an iso-buck that implements an isolated power system without using an optocoupler.

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Power Seminar Module 10: Practical Design Considerations for a No-Opto Flyback Converter

How to design a no-opto flyback that implements an isolated power system without using an optocoupler.

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Power Seminar Module 11: Understanding System Protection

Overview of system protection and why the need for it is increasing.

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Power Seminar Module 12: Understanding Specifications of Protection ICs

A detailed look at some of the specifications that are important for a modern integrated protection IC.

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DC-DC Converter Design Made Easy

Learn how to complete a power supply design for wide input-voltage DC-DC converters using the EE-Sim Design and Simulation tool. Watch as we walk through how voltage regulators work, their key design considerations, and the procedures to follow in quickly designing, simulating, and comparing power designs. We also show the unique qualities of our Himalaya power module family, providing information on their system requirements and performance.

MAX20733EVKIT Board Photo

Evaluation Kit for the MAX20733 (Integrated, Step-Down Switching Regulator)

Star Campaign July Asia-20170711 PM

Monthly Technical Training: Star Campaign July Asia-20170711 PM

Monitor System Loads with Current-Sense Amps

Watch a demonstration of high-accuracy power monitoring using the MAX44298 evaluation kit. Learn how to add that extra bit of "analog hardware insurance" to your next design using current-sense amplifiers with very low offset error and very low gain error, for more robust and higher quality end products.

Maxim GNSS-GPS Update 20170822 AM

Monthly Technical Training: Maxim GNSS-GPS Update 20170822 AM

Maxim Support Portal

Introduction to Maxim's new support portal.

Introduction to the MAX30110-12 Optimized Pulse-Oximeters and Heart Rate AFE for Wearable Health

This video provides an introduction to the MAX30110-12, a Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health.

Maxim Website Tour: eBriefs

eBriefs are interactive pdf summaries of key product information and resources. Learn the benefits of the eBrief and how to quickly find and share the one you need.

KeyPAD Block Training

Monthly Technical Training: KeyPAD Block Training PM 20170829

Introduction to the MAX14748 USB Type-C Charger

This video provides an introduction to the MAX14748, a USB Type-C Charger.

[Internal] Introduction to the MAX20071 MAX20072 Single 600mA/1A 2.2MHz Low-Voltage Step-Down DC-DC converter

This video provides an introduction to Maxim’s Single 600mA/1A 2.2MHz Low-Voltage Step-Down DC-DC converter – the MAX20071 and 20072.

[Distributor] Introduction to the MAX20071 MAX20072 Single 600mA/1A 2.2MHz Low-Voltage Step-Down DC-DC converter

This video provides an introduction to Maxim’s Single 600mA/1A 2.2MHz Low-Voltage Step-Down DC-DC converter – the MAX20071 and 20072.

Summer of Love Contest Winner

Introduction to the MAX86140 Optical Pulse Oximeter and Heart-Rate Sensor

This video provides an introduction to the MAX86140, a Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health.

Quick Design-In Success with Maxim's Himalaya Power Modules

Monthly Technical Training: Quick Design-In Success with Maxim's Himalaya Power Modules

How to Use the MAX32630FTHR with an OLED Display - Part 3

In this last installment in the series, Greg shows how easy it is to configure the Mbed™ libraries for the MAX32630FTHR board and OLED display. You’ll learn how to modify and customize the software for your needs.

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How to Use the MAX32630FTHR with an OLED Display - Part 2

In this video, Greg shows how to load the software and Mbed™ libraries for the MAX32630FTHR board and guides you through each phase of the installation process. To learn more about how to configure the software for the MAX32630FTHR board, watch, "How to Use the MAX32630FTHR with an OLED Display - Part 3."

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How to Use the MAX32630FTHR with an OLED Display - Part 1

Watch as Greg demonstrates how to drive a commonly available OLED display using the MAX32630FTHR application platform. In this first installment, he shows how to select and configure hardware components including peripherals and Adafruit feather boards. To learn how to load the software for the MAX32630FTHR board, watch, "How to Use the MAX32630FTHR with an OLED Display - Part 2."

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Why Every Car Needs These High-Speed Serial Links

See why Gigabit Multimedia Serial Link (GMSL) SerDes technology provides the bandwidth needed to transport a burgeoning volume of multi-type data to enable sophisticated ADAS and infotainment capabilities in vehicles.

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Sales Enablement: Low Power Micros Roadmap & Strategy

This session is used to review roadmap, strategy, and get feedback.

What You Can Sell Today: Secure Micros Are Fun to Sell

FAE Technical Training: Industrial Protection

In this session, FAEs will get an in-depth training on system protection on popular 12V and 24V rails. Learn about over-voltage, over-current protection against faults.

How to Derive More System Efficiency from Battery-Powered Designs

Video game controller

Buck controllers can support the efficiency and battery life requirements of portable electronics.

Demonstrating Cryptographic Hash, Signatures, and Authentication

Almost every piece of technology we use today has some kind of embedded firmware. Rogue firmware, however, can leak data and cause device malfunctions. Watch this video to see how you can use the MAXAUTHDEMO1 kit, featuring the DS28C36 DeepCover® secure authenticator, to easily and securely authenticate your design.

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