Amplifiers & OP Amps/Current-Sense Amplifiers | Maxim Integr

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We offer a wide selection of amplifiers and comparators for signal conditioning, monitoring, and control applications.

You can use Maxim’s op amps to make amplifiers, comparators, log amplifiers, filters, oscillators, data converters, level translators, references, and more. You can also use them to accomplish mathematical functions like addition, subtraction, multiplication, and integration.

Current-sense amplifiers (CSAs) monitor current flow through a shunt (sense) resistor and provide closed-loop feedback of system loads. Our current-sense amps are optimized for a wide range of applications, including overcurrent protection and optimization of power monitoring systems. We offer a wide range of current-sense amplifiers for both high-side sensing and low-side sensing, as well as unidirectional or bidirectional current flow through the sense resistor

Our specialized amplifiers have multiple features suited for a wide range of applications. This range includes differential, instrumentation/difference, logarithmic, programmable gain, integrated comparator and reference and programmable voltage/current drivers.

Operational Amplifiers

Operational Amplifiers, more commonly called Op-Amps, play a key role in conditioning analog signals. There are many types of op-amps and many paramet...

All Op Amps Precision Op Amps High Speed Op Amps Low Power Op Amps High Voltage Op Amps Low Bias Current Op Amps

Current Sense

Current-sense amplifiers (CSAs) monitor current flow through a shunt (sense) resistor and provide closed-loop feedback of system loads. Current-sense ...

All Current Sense Precision Current Sense Amplifiers High Voltage Current Sense Amplifiers Low Power Current Sense Amplifiers

Specialized

Maxim provides amplifiers with specialized operation and multiple features suited for a wide range of applications, including differential output ampl...

Differential Output Amplifiers Instrumentation Amplifiers Integrated Comparator and Reference Amplifiers Logarithmic Amplifiers Programmable Voltage and Current Drivers Programmable Gain Amplifiers

Featured Products

MAXREFDES_LIDAR1 MAXREFDES_LIDAR1#: Quad-Channel LiDAR Receiver Front-End Reference Design, MAX40662, MAX40026

Maxim Integrated partnered with First Sensor to design a reference design featuring the First Se...

4-Channel APD
Quad Channel TIA with MUX
Single Fast Comparator

MAX40213EVKIT Evaluation Kit for the MAX40213

The MAX40213 evaluation kit (EV kit) is a fully assembled electrical demonstration kit that prov...

Two Evaluation Circuits: 50Ω and Hi-Z Outputs for Different Equipment
-40°C to +85°C Temperature Range
Accommodates Easy-to-Use Components
Proven PCB Layout
Fully Assembled and Tested

MAX40213 Transimpedance Amplifiers with Selectable Gain and Input Current Clamp

The MAX40213 is a transimpedance amplifier for optical distance measurement receivers in LiDAR a...

Optimized for C_IN = 0.25pF to 5pF
Bandwidth = 300MHz (typ)
1.1pA/√Hz Input-Referred Noise
Two Pin-Selectable Transimpedance Values (R_L = 1kΩ)
- 150kΩ
- 750kΩ
Internal Clamp for Input Current up to 2A (Transient)
Fast Overload Recovery: 25ns at 100mA
Offset Input Provides Offset Adjust Feature
SD Input Shuts Down Internal Circuitry
3.3V Operation
1.75mm x 1.24mm, 8-Bump WLP

MAX40204 36V, Pin-Programmable Gain, Bidirectional CSA

The MAX40204 is a high-precision, bidirectional, high-side current-sense amplifier (CSA) with a ...

-0.1V to 36V Wide Input Common Mode
Ultra-Low, 2μV Input Offset Voltage
On-the-Fly Gain Setting Input
Bidirectional/Unidirectional Current Sensing
20nA (max) Input Bias Current
Extremely Low, 50nV/°C Input Offset Tempco
0.05% Gain Error
21μA Supply Current
70nA (typ) Shutdown Current
1.7V to 5.5V Single Supply Operating Range
Space-Saving 8-Bump WLP and 8-Pin TDFN Packages

MAX41400 Low-Power, Precision Instrumentation Amplifier with Programmable Gain

The MAX41400 is a low-power, high-precision instrumentation amplifier with programmable gain thr...

Supply Voltage Range: 1.7V to 3.6V
Very Low 25µV (max) Input Offset Voltage
Low 65µA Quiescent Current
Rail-to-Rail Inputs and Outputs
EMIRR

>100dB at 1800MHz, 2400MHz
>90dB at 400MHz, 900MHz

28kHz, -3dB Bandwidth
Eight Input-Selectable Fixed-Gain Options

10V/V, 20V/V, 40V/V, 80V/V, 100V/V, 150V/V, 200V/V, and 250V/V

Power-Saving Shutdown Mode
Available in Tiny 1.26mm x 1.23mm, 9-Bump WLP and 2.5mm x 2mm, 10-Pin TDFN

MAX40204EVKIT Evaluation Kit for the MAX40204

The MAX40204 evaluation kit (EV kit) is designed to evaluate the MAX40204ANA+, a precision bidir...

Wide -0.1V to 36V Input Range Common Mode Range
Operates Off a Single 5V Supply
Unidirectional/Bidirectional Operation
On-the-Fly Gain Input Jumper
Shutdown Mode Jumper
-40°C to +125°C Temperature Range
Lead(Pb)-Free and RoHS Compliant
Proven PCB Layout
Fully Assembled and Tested

MAX49921 0 to 70V, High-Precision Current-Sense Amplifier

The MAX49921 is high-precision, unidirectional current-sense amplifier (CSA) with an operating i...

AEC-Q100 Qualified for Automotive Applications
± 0.5µV (typ) Input Offset Voltage
± 0.05% (typ) Gain Error
0 to +70V Input Voltage Range
-42V to +80V Protective Immunity
65kHz, -3dB Bandwidth
140dB DC CMRR
Gain Options: 20V/V, 50V/V
Rail-to-Rail Output
2mm x 3mm, 8-Pin TDFN Package
-40°C to +125°C Automotive Temperature Range

MAX41400EVKIT Evaluation Kit for the MAX41400

The MAX41400 evaluation kit (EV kit) provides a proven design to evaluate the MAX41400 low-power...

Single- or Dual-Supply Operation
Configurable Gain
Configurable Reference Voltage
Proven PCB layout
Fully Assembled and Tested

MAX32010 25V Span, 1.2A Device Power Supply (DPS)

The MAX32010 provides all the key features of a device power supply (DPS) common to automatic te...

Programmability for Multiple ATE Applications
- Programmable Current and Voltage Compliance
- Programmable Current Ranges
  - ±200µA
  - ±2mA
  - ±20mA
  - ±200mA
- External Buffer Supports Higher Currents with up to 16 Parallel Devices
- Programmable Gain Allows a Wide Range of DACs
High Accuracy and Flexible Control for Optimal Performance
- Load Regulation of 1mV at 1200mA
- Programmable Compensation for Wide Range of Loads
- Range Change Glitch Control
- Integrated Window Comparator for Go/No-Go Testing
- External Test Mode Enables I_DDQ Measurement with Reprogramming
- 3-Wire, 20MHz SPI Interface
Integrated Protection for Robustness
- Thermal Warning Flag and Thermal Shutdown
- Short-Circuit Protection
Compact 14mm x 14mm, 100-Pin TQFP Package

MAXREFDES-LIDAR1 MAXREFDES_LIDAR1#: Quad-Channel LiDAR Receiver Front-End Reference Design, MAX40662, MAX40026

Maxim Integrated partnered with First Sensor to design a reference design featuring the First Se...

4-Channel APD
Quad Channel TIA with MUX
Single Fast Comparator

MAXREFDES_LIDAR1 MAXREFDES_LIDAR1#: Quad-Channel LiDAR Receiver Front-End Reference Design, MAX40662, MAX40026

Maxim Integrated partnered with First Sensor to design a reference design featuring the First Se...

4-Channel APD
Quad Channel TIA with MUX
Single Fast Comparator

MAX40213EVKIT Evaluation Kit for the MAX40213

The MAX40213 evaluation kit (EV kit) is a fully assembled electrical demonstration kit that prov...

Two Evaluation Circuits: 50Ω and Hi-Z Outputs for Different Equipment
-40°C to +85°C Temperature Range
Accommodates Easy-to-Use Components
Proven PCB Layout
Fully Assembled and Tested

MAX40213 Transimpedance Amplifiers with Selectable Gain and Input Current Clamp

The MAX40213 is a transimpedance amplifier for optical distance measurement receivers in LiDAR a...

Optimized for C_IN = 0.25pF to 5pF
Bandwidth = 300MHz (typ)
1.1pA/√Hz Input-Referred Noise
Two Pin-Selectable Transimpedance Values (R_L = 1kΩ)
- 150kΩ
- 750kΩ
Internal Clamp for Input Current up to 2A (Transient)
Fast Overload Recovery: 25ns at 100mA
Offset Input Provides Offset Adjust Feature
SD Input Shuts Down Internal Circuitry
3.3V Operation
1.75mm x 1.24mm, 8-Bump WLP

MAX40204 36V, Pin-Programmable Gain, Bidirectional CSA

The MAX40204 is a high-precision, bidirectional, high-side current-sense amplifier (CSA) with a ...

-0.1V to 36V Wide Input Common Mode
Ultra-Low, 2μV Input Offset Voltage
On-the-Fly Gain Setting Input
Bidirectional/Unidirectional Current Sensing
20nA (max) Input Bias Current
Extremely Low, 50nV/°C Input Offset Tempco
0.05% Gain Error
21μA Supply Current
70nA (typ) Shutdown Current
1.7V to 5.5V Single Supply Operating Range
Space-Saving 8-Bump WLP and 8-Pin TDFN Packages

MAX41400 Low-Power, Precision Instrumentation Amplifier with Programmable Gain

The MAX41400 is a low-power, high-precision instrumentation amplifier with programmable gain thr...

Supply Voltage Range: 1.7V to 3.6V
Very Low 25µV (max) Input Offset Voltage
Low 65µA Quiescent Current
Rail-to-Rail Inputs and Outputs
EMIRR

>100dB at 1800MHz, 2400MHz
>90dB at 400MHz, 900MHz

28kHz, -3dB Bandwidth
Eight Input-Selectable Fixed-Gain Options

10V/V, 20V/V, 40V/V, 80V/V, 100V/V, 150V/V, 200V/V, and 250V/V

Power-Saving Shutdown Mode
Available in Tiny 1.26mm x 1.23mm, 9-Bump WLP and 2.5mm x 2mm, 10-Pin TDFN

MAX40204EVKIT Evaluation Kit for the MAX40204

The MAX40204 evaluation kit (EV kit) is designed to evaluate the MAX40204ANA+, a precision bidir...

Wide -0.1V to 36V Input Range Common Mode Range
Operates Off a Single 5V Supply
Unidirectional/Bidirectional Operation
On-the-Fly Gain Input Jumper
Shutdown Mode Jumper
-40°C to +125°C Temperature Range
Lead(Pb)-Free and RoHS Compliant
Proven PCB Layout
Fully Assembled and Tested

MAX49921 0 to 70V, High-Precision Current-Sense Amplifier

The MAX49921 is high-precision, unidirectional current-sense amplifier (CSA) with an operating i...

AEC-Q100 Qualified for Automotive Applications
± 0.5µV (typ) Input Offset Voltage
± 0.05% (typ) Gain Error
0 to +70V Input Voltage Range
-42V to +80V Protective Immunity
65kHz, -3dB Bandwidth
140dB DC CMRR
Gain Options: 20V/V, 50V/V
Rail-to-Rail Output
2mm x 3mm, 8-Pin TDFN Package
-40°C to +125°C Automotive Temperature Range

MAX41400EVKIT Evaluation Kit for the MAX41400

The MAX41400 evaluation kit (EV kit) provides a proven design to evaluate the MAX41400 low-power...

Single- or Dual-Supply Operation
Configurable Gain
Configurable Reference Voltage
Proven PCB layout
Fully Assembled and Tested

MAX32010 25V Span, 1.2A Device Power Supply (DPS)

The MAX32010 provides all the key features of a device power supply (DPS) common to automatic te...

Programmability for Multiple ATE Applications
- Programmable Current and Voltage Compliance
- Programmable Current Ranges
  - ±200µA
  - ±2mA
  - ±20mA
  - ±200mA
- External Buffer Supports Higher Currents with up to 16 Parallel Devices
- Programmable Gain Allows a Wide Range of DACs
High Accuracy and Flexible Control for Optimal Performance
- Load Regulation of 1mV at 1200mA
- Programmable Compensation for Wide Range of Loads
- Range Change Glitch Control
- Integrated Window Comparator for Go/No-Go Testing
- External Test Mode Enables I_DDQ Measurement with Reprogramming
- 3-Wire, 20MHz SPI Interface
Integrated Protection for Robustness
- Thermal Warning Flag and Thermal Shutdown
- Short-Circuit Protection
Compact 14mm x 14mm, 100-Pin TQFP Package

MAXREFDES-LIDAR1 MAXREFDES_LIDAR1#: Quad-Channel LiDAR Receiver Front-End Reference Design, MAX40662, MAX40026

Maxim Integrated partnered with First Sensor to design a reference design featuring the First Se...

4-Channel APD
Quad Channel TIA with MUX
Single Fast Comparator

Customer Testimonials

Featured Blogs

Latest Blogs

How LiDAR Delivers Critical Distance-Sensing for Self-Driving Cars

April 17, 2020

Learn how LiDAR ICs like transimpedance amplifiers deliver critical distance-sensing data for self-driving cars. Read the blog for details.

Robust NAND Flash Wafer Testers Rely on Low-Power ATE Drivers

February 19, 2020

Learn how Digital Frontier reduced wafer test equipment size and power consumption with the MAX9972 low-power ATE driver. Get details today.

How an Old Digital Dog Can Learn New Analog Tricks

October 10, 2019

Learn some new analog tricks in a short video tutorial that highlights why not just any amplifier will be effective for your application.

System Loads Are No Match for This Current-Sense Amplifier

July 03, 2019

Learn how the MAX40056 current-sense amplifier with PWM rejection generates quick, accurate winding current measurements.

The Beauty of Precision Op Amps

May 08, 2018

Guest blogger Jim Harrison takes a look at the criteria for choosing the best op amps for a design, and reviews three of the market’s best.

Why Not Design a Smaller PLC?

September 12, 2017

Learn how small, low-power analog ICs help reduce the programmable logic controller (PLC) footprint.

Making Smart Energy Even Smarter Via nanoPower Technology

April 25, 2017

Learn how nanoPower technology lowers quiescent current to deliver a new model of smart energy.

Why System Monitoring ICs Are Good Analog Insurance

March 15, 2017

Learn why nanoPower system monitoring ICs provide great analog insurance for wearable and other small, battery-powered designs.

To IO-Link and Beyond!

February 21, 2017

IO-Link is at the heart of a true evolution in manufacturing. Learn how intelligent sensors can power industrial IoT applications.

Vision Realized in Advancing Industry 4.0 Solutions

January 24, 2017

Maxim’s Pocket IO PLC Development Platform literally puts the power of Industry 4.0 in your pocket.