Optical Health Sensor
Complete Biosensing Solutions for Wearable, Hearable, Portable and In-Ear Applications
Optical health sensor ICs for body-wearable applications track health and wellness with complete biosensing solutions for continuous heart-rate tracking, heart variability, and oxygen saturation. Our portfolio of complete optical sensor solutions includes highly integrated optical modules for space-constrained form factors, high SNR analog front-ends (AFEs) to address low perfusion cases (corner cases), and algorithms that extract meaningful information from photoplethysmography (PPG) signals.
Ultra-low power consumption and leading-edge packaging technology extend product battery life, reduce solution size, and accelerate time-to-market. Our portfolio enables optical sensor solutions for a variety of use cases and body locations.
Our packaging innovation in optical modules has paved the path way for optical biosensing in mobile phones and in-ear headsets. These biosensor optical modules are creatively assembled in optically enhanced packaging. The packaging technology eliminates crosstalk between LEDs and photodiodes (PD) without compromising the optical spacing necessary to extract useful signals from the body.
Our heart-rate (HR) and consumer-grade SpO2 algorithms meet FDA requirements and work seamlessly with our optical sensor devices.
Optical Health Sensor ICs Featured Products
JEITA-Compliant, Li+ Charger with and USB EnumerationMAX77301
A JEITA-compliant lithium-ion linear battery charger that operates from a USB port, a dedicated charger, or universal adapter. The IC provides automatic adapter-type detection and enumeration with a USB host or hub. Provides the simplest and smallest USB-compliant charging solution.
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High-Efficiency Buck-Boost RegulatorMAX77801
The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77801 utilizes a four-switch H-bridge configuration to support buck and boost operating modes. Buck-boost provides 2.60V to 4.1875V of output voltage range and up to 2A output current.
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14-Channel High-Voltage Data-Acquisition SystemMAX17853
Achieves ASIL-D compliance using a single chip for mid-to-large cell count configurations.
Industrial Power Step-down Power ModulesHigh-efficiency, high-voltage DC-DC step-down power modules
These power modules combine an efficient Maxim switching regulator, a fully shielded inductor, and numerous other passive components into one low-profile, thermally-efficient system-in-package (SiP). These modules operate over the industrial temperature range.
MAX44000PMB1: Peripheral ModuleMicrosoft Word - MAX44000PMB1-quick-start_gs2.docx,MAX44000PMB1
Ambient and Infrared Proximity Sensor Peripheral Module
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Evaluation Kits for the DS3231M or DS3232M (±5ppm, I2C Real-Time Clock)
4V to 42V, 100mA, Compact Step-Down Power ModuleMAXM17532
The MAXM17532 is a step-down DC-DC power module built in a compact uSLICTM package. The MAXM17532 integrates a controller, MOSFETs, an inductor, as well as the compensation components. The device operates from an input voltage of 4.0V to 42V, supports an adjustable output voltage from 0.9V to 5.5V, and supplies up to 100mA of load current. The high level of integration significantly reduces design complexity, manufacturing risks and offers a true “plug and play” power supply solution, hence reducing the time-to-market.
Arm Cortex-M4F Development Platform with Expansion Connectors for Battery-Powered DevicesMAX32620FTHR
Mbed-enabled development platform for the MAX32620 ultra-low-power microcontroller. On-board PMIC, fuel gauge, peripherals, and Pmod™ connectors enable rapid development with a small 0.9in x 2.0in board.
Complete Evaluation Board for Ultra-Low Power Cortex-M4F MicrocontrollerMAX32620-EVKIT
Power-optimized Arm® Cortex®-M4F. Optimal peripheral mix provides platform scalability. On-board bluetooth® 4.0 BLE transceiver with chip antenna.
Evaluation Kit for GPS/GNSS Ultra-Low Current LNAMAX2679/MAX2679B EV Kits - Evaluates: MAX2679/MAX2679B
Enables testing of RF performance with no additional circuitry. Provides 50Ω SMA connectors for inputs and outputs.
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DeepCover Embedded Security in an IoT: Public-Key Secured Data PathsMAXREFDES155
Secures IoT systems with a public-key-based authenticated data chain from a protected sensor node to a web server.
Arm Cortex-M4F Development Platform Optimized for Bluetooth®-Based Battery-Powered DevicesMAX32630FTHR
Mbed-enabled development platform for the MAX32630 ultra-low-power microcontroller. On-board PMIC, Bluetooth, and peripherals enable rapid development with a small 0.9in x 2.0in board.
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Wearable Charge Management SolutionMAX14676
This battery-charge-management solution includes a linear battery-charger with 28V tolerant input, smart power control, and several power-optimized peripherals. A boost regulator with 5V to 17V output, and 3 programmable current sinks can drive a variety of LED configurations.
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ModelGauge m3 Fuel GaugeMAX17047/MAX17050
These battery fuel gauges provide excellent short-term and long-term accuracy by using both coulomb counting and voltage-based ModelGauge algorithms. ModelGauge m3 cancels offset accumulation error in the coulomb counter while providing better short-term accuracy than any purely voltage-based fuel gauge.
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USB/AC Adapter, Li+ Linear Battery ChargerMAX8606
This complete 1-cell Li+ battery charge-management IC operates from either a USB port or AC adapter. It integrates a battery disconnect switch, current-sense circuit, PMOS pass element, and thermal-regulation circuitry, while eliminating the external reverse-blocking Schottky diode, to create a simple and small charging solution.
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High-Efficiency Buck-Boost Regulator with 5A SwitchesMAX77816
98% efficiency with I2C interface for single-cell Li-ion battery-powered applications.
20A User-Configurable Quad-Phase Buck ConverterMAX77812
91% efficiency with 3.4MHz high-speed I2C and 30MHz SPI interface, optimized for single-cell battery-powered applications.
Octal, High-Speed, High-Side Switch/Push-Pull DriverMAX14912/MAX14913
Robust 24V driver, capable of 200kHz switching rate
Ultra-Low Power Arm® Cortex® M4 with FPU Microcontroller for Wearables and IoT, with 2MB Flash and 512KB SRAM, and Advanced Cryptographic Hardware EnginesMAX32630/MAX32631
The MAX32630/MAX32631 feature an Arm® Cortex®-M4 with FPU CPU that delivers ultra-low power, high-efficiency signal processing functionality with significantly reduced power consumption and ease of use.
Ultra-Low-Power, Robust Dual IO-Link Master TransceiverMAX14819
Master transceiver with sensor/actuator power-supply controllers.
4-Channel, 1kVRMS Digital IsolatorMAX14130/MAX14930
Allows direct interfacing to 1.8V devices in 6mm x 5mm package
24-Bit, Low Power, Low Noise, Delta-Sigma ADC with Integrated PGAMAX11270
The MAX11270 is a 24-bit delta-sigma ADC that achieves excellent 130dB SNR while dissipating an ultra-low 10mW. Sample rates up to 64ksps allow both precision DC and AC measurements. Integral non-linearity is guaranteed to 4ppm maximum.
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Quad, Ultra-Low-Power, 200Mbps ATE Drivers/ComparatorsMAX19005
This four-channel, ultra-low-power, pin-electronics IC includes a two-level pin driver, a window comparator, a passive load, and force-and-sense Kelvin-switched parametric measurement unit (PMU) connections for each channel.
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Dual 1.1Gbps Pin Electronics with Integrated PMU and Level-Setting DACsMAX9979
This fully integrated, high-performance, dual-channel pin electronics IC integrates multiple automatic test equipment (ATE) functions into a single IC, including driver/comparator/load (DCL), parametric measurement unit (PMU), and built-in (16-bit) level-setting digital-to-analog converters (DACs).
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4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller and Battery DisconnectMAX16813
Multi-String Driver Provides High Efficiency and Complete Fault Protection While Minimizing External Components
RTD-to-Digital Temperature Sensor InterfaceMAX31865
Provides 0.5°C total accuracy with fault detection and ±45V input protection
4.5 to 60V, 5A, High-Efficiency Step-Down ConverterMAX17506
Includes integrated high-side MOSFET with output from 0.9V up to 0.9 x VIN in a 5mm x 5mm TQFN
2.75kVRMS Isolated RS-485 TransceiverMAX14853
Full-duplex, 500kbps RS-485 with ±35kV ESD protection and integrated transformer driver
Tiny Secure, Accurate Charger for Single Cell Li+ BatteriesDS2784
This charger delivers a complete fuel-gauging solution in a tiny 15mm2 footprint. It integrates a stand-alone fuel gauge, a single-cell Li+ protector, and a SHA-1-based challenge-response authentication system.
Thermocouple to DigitalMAX31856
Precision Thermocouple to Digital Converter with Linearization
3.12Gbps GMSL SerializersMAX9291/MAX9293
Enables use of coax cables, reducing weight and cost of cabling in automotive infotainment.
3.12Gbps GMSL DeserializersMAX9288/MAX9290
3.12Gbps GMSL Deserializers for Coax or STP Input and MIPI CSI-2 Output
Compact, 16-Bit, 1.6Gbps GMSL SerializerMAX96705
With crosspoint switch and CRC protection of video and control data for ADAS.
Compact, 14-Bit, 1.6Gbps GMSL SerializerMAX96711
With line-fault detection and CRC protection of video and control data for ADAS.
DeepCover Secure Microcontroller with ARM926EJ-S Processor CoreMAX32590
High-performance, single-chip secure microcontroller with encrypted external bus and advanced physical security.
Wellness Measurement MicrocontrollerMAX32600-KIT
This complete functional system includes a MAX32600 wellness measurement microcontroller, selectable power sources, headers for access to I/O port pins and the AFE, 8-digit LCD display, USB, UART, low-power Bluetooth® transceiver, and general-purpose IO.
Ultra-Low Power Arm Cortex M4 with FPU Microcontroller for Wearables and IoT, with up to 512KB Flash and 160KB SRAMMAX32625/MAX32626
The MAX32625/MAX32626 feature an Arm® Cortex®-M4 with FPU CPU that delivers high-efficiency signal processing, ultra-low power consumption and ease of use.
Ultra-Low-Power Arm® Cortex®-M3 with Wellness Sensor Analog Front-End, Advanced Hardware Security, 256KB Flash and 32KB SRAMMAX32600
High-Performance, Ultra-Low Power ARM Cortex-M4F with FPU-Based Microcontroller for Rechargeable DevicesMAX32620/MAX32621
Ultra-Low Power Cortex-M4F for Wearable Medical and Fitness Applications
Step-Up Converter for Handheld ApplicationsMAX8969
The MAX8969 is a simple 1A step-up converter in a small package that operates in any single-cell Li-ion application. This IC provides protection features such as input undervoltage lockout, short circuit, and overtemperature shutdown.
DeepCover Secure Cortex-M3 Flash MicrocontrollerMAX32550
Secure Cortex-M3 Flash Microcontroller with Secure Boot Loader with PKA
Accurate 8-Channel Temperature SensorMAX6581
This precision multichannel temperature sensor monitors its own temperature and the temperatures of up to seven external diode-connected transistors. All temperature channels have programmable alert and overtemperature thresholds.
Ultra-Low-Power, Single-Channel Integrated Biopotential AFEMAX30003
Secure authenticator features factory-programmed, unique 64-bit ROM identification number.
300mA, Buck Converter with 1.1μA IQMAX77596
This small, synchronous buck converter with integrated switches can deliver up to 300mA with input voltages from 3.5V to 24V, while using only 1.1μA quiescent current at no load.
Precision Uni and Bidirectional, Current-Sense AmplifiersMAX9918,MAX9918/MAX9920
These ICs are single-supply, high-accuracy current-sense amplifiers with a high input common-mode range that extends from -20V to +75V.
Stand-Alone ModelGauge m5 Fuel Gauge with SHA-256 AuthenticationMAX17201/5/11/15
This ultra-low power fuel gauge IC with SHA-256 authentication doesn’t require characterization, ideal for pack-side implementation.
Low-Power, High-Performance, Fully Integrated Octal Ultrasound ReceiverMAX2079
A fully integrated octal ultrasound receiver is optimized for high channel count, high-performance portable and cart-based ultrasound systems.
Highly Integrated Low Power Octal Ultrasound TransceiverMAX2082
This fully-integrated octal ultrasound transceiver is optimized for high channel-count, high-performance portable and cart-based ultrasound systems. This transceiver allows the user to achieve high-end 2D and Doppler imaging capability using substantially less space and power.
This octal, three-level, digital pulser generates high-frequency, HV bipolar pulses (up to ±105V) from low-voltage control logic inputs for driving piezoelectric transducers in ultrasound systems.
IO-Link master transceiverMAX14824
This IO-Link master transceiver is integrated with an auxiliary digital input and two linear regulators and is scalable to 16 channels.
12-Channel, High-Voltage Smart Sensor Data-Acquisition InterfaceMAX17843
Programmable ASIL D battery monitor ASIC optimized for automotive, hybrid electric battery pack, and electric vehicle systems.
Automotive 3-Axis Digital Output GyroscopeMAX21001
Automotive digital output gyroscope with high accuracy and sensitivity over temperature and time.
0.4V to 5.5V Input, Synchronous Boost RegulatorMAX17222
Delivers 300nA IQ at 95% peak efficiency and reduces solution size by up to 50%
Capacitor-Adjustable Nanopower Supervisory CircuitsMAX16056
125nA Supervisory Circuit with Capacitor-Adjustable Reset and Watchdog Timeouts
Ultra-Low Power PMIC with 3-Output SIMO and Charger Optimized for Small Li+ BatteriesMAX77650-MAX77651
Highly Integrated with Ultra-Low 6.5µA Operating Current