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Industrial Functional 
Sensor interface ICs connect directly to a sensor element and provide the needed signal conditioning to extract an accurate signal for monitoring and control systems. Fully integrated sensor signal conditioners connect directly to the sensor, perform conditioning, and optionally fulfill data communication functions.
Learn how to select a signal chain for temperature and pressure sensor designs.
Also see:
RS-485/RS-422 Transceivers, Featuring Fault Protection and ESD Protection
4–20mA Current Loop Products
Featured Blogs
Customer Testimonials
On the Go Vital Monitoring and Gaming Platform
January 13, 2021
This blog explores an application using a low power SIMO PMIC, the world’s smallest solution size and highest system efficiency, and the story behind it.
The Dawn of the Self-Aware Machine
December 10, 2020
What does "The Dawn of the Self-aware Machine" really mean? I am sure many are thinking of the human-like robots seen in the movies as a way to further replace people on the factory floor.
How iButton Devices Facilitate Electric Car Safety
October 29, 2020
Formula Student Germany competitors design fierce electric race cars. They’ve relied on Maxim Integrated’s iButton devices for electric car safety.
How Being Bold Brings Smart Automation Solutions
October 27, 2020
See how the industry’s first true software-configurable universal analog IO solution provides the flexibility to meet industrial automation challenges.
How Performance at the Edge Drives Smarter Manufacturing
October 26, 2020
Maxim Integrated’s Jeff DeAngelis explains how the COVID-19 pandemic has highlighted what’s needed for manufacturing lines to adapt to changing demands.
What Makes Cryptography Easier? Secure Authenticators and Coprocessors
September 17, 2020
See how secure authenticators and coprocessors make it easier for you to integrate cryptography to protect your embedded designs.
Extend the battery life of your vehicle tracker/asset tracker/IoT device 10-fold with Maxim’s ultra-low power GPS solution
September 15, 2020
Full ultra-low power GPS solution using the MAX2769C GNSS L1 receiver, and the MAX32632 ARM Cortex M4 microcontroller
Understand and Address Threats to Cryptographic Systems
September 10, 2020
Understand the threats that cryptographic systems face and how you can guard against these threats.
Two Beautiful Ways to Measure Temperature
September 09, 2020
Learn how easily you can design with the latest Maxim resistance temperature detectors (RTDs) and temperature sensors.
When Smarter Gets Smaller, Only a Dual-Core Micro Will Do
September 03, 2020
Learn how a dual-core Bluetooth Low Energy microcontroller meets the size, power, and security demands of wireless, battery-operated IoT designs.
Featured Products
MAX22007EVKIT Evaluation Kit for the MAX22007
The MAX22007 evaluation kit (EV kit) provides the hard- ware and software necessary to evaluate ...
- Two Accessible Modes:
- Analog Output-Voltage Mode
- Analog Output-Current Mode
- Supports Load Impedance Detection
- Access to All GPIOs
- Windows® 10-Compatible Software
- Proven PCB Layout
- Fully Assembled and Tested
MAX22007 Four-Channel 12-Bit Configurable Analog Output with Integrated Voltage Reference
The MAX22007 is a software-configurable four-channel analog output device that drives a voltage ...
- Configurable Outputs
- Each Output Individually Configurable
- Internal Comparator to Allow Calculating Load Impedance for Voltage-Mode or Current-Mode
- Voltage Mode is 0V to 10.5V Linear Range with 12.5V Overrange for Loads from 1kΩ to 1MΩ
- Current Mode is 0mA to 21mA Linear Range with 25mA Overrange for Loads from 0Ω to 750Ω
- System Accuracy
- V/I Output Resolution is 12-Bits
- Factory Calibrated for Gain and Offset Error within ± 0.2% at +25°C
- V/I Total Unadjusted Error Less Than ± 1% from -40°C to +85°C
- Robust with Integrated Diagnostics
- ±42VP-P Protection for Output Drivers
- ±1kV Surge Protection with 4.99kΩ Series Resistors at Input Pins
- ±2.5kV HBM ESD Protection on All Pins
- Outputs have Short-Circuit and Overvoltage Protection with External Diodes
- Thermal Monitoring and Shutdown Protection
- Simple and Low-Cost Interface
- Up to 30MHz SPI Serial Interface with Optional 8-Bit CRC
- Daisy-Chain Mode to Reduce System Cost
- VDD = 2.7V to 5.5V for Easy Interface to the Microcontroller
- High Voltage Output Supplies:
- HVDD: +8V to +24V
- HVSS: -2V to 0V
- Robust Performance in a Compact Package
- -40°C to 85°C Operating Temperature Range
- 56-pin TQFN, 8mm x 8mm
MAX30134EVSYS Evaluation System for the MAX30131/MAX30132/MAX30134
The MAX30134 evaluation system provides a single platform to evaluate the functionality and feat...
- Convenient Platform to Evaluate the MAX30131/MAX30132/MAX30134
- Many Easy-to-Reach Test Points
- Multichannel Operation
- Windows® 7-, 8-, 10-Compatible GUI Software
- Fully Assembled and Tested
- Facilitates IEC61000-4-2 ESD Compliance Testing
- Ultra-Low-Power Design
MAX14821 IO-Link Device Transceiver
The MAX14821 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All ...
- Standards Compliance Ensures Future-Proof Solutions
- IO-Link Versions 1.0 and 1.1.2
- IEC IEC61131.9 SDCI
- High Configurability and Integration Reduces SKUs
- Push-Pull, PNP or NPN Driver Configuration
- Supports COM1, COM2, and COM3 Data Rates
- SPI Interface for Control and Monitoring
- 2.5V to 5V Logic Interface Levels
- Auxiliary 24V, 100mA Digital Output (DO)
- Auxiliary 24V Digital Input (DI)
- 100mA Specified C/Q output Drive
- Integrated 5V and 3.3V Regulators
- Integrated Protection Enables Robust Solutions
- Extensive Fault-Monitoring and Reporting
- Reverse-Polarity and Short-Circuit Protection on All 24V Outputs/Inputs
- Reverse-Polarity Protected 24V Supply Output
- -40°C to +105°C Operating Temperature Range
- Small Package Supports Sensor Miniaturization
- 2.5mm x 2.5mm WLP and 4mm x 4mm TQFN Package
MAX86140 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX86140/MAX86141 are ultra-low-power, com- pletely integrated, optical data acquisition sys...
- Complete Single-Channel, Optical Data Acquisition System
- Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
- Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
- Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
- High-Resolution, 19-bit Charge Integrating ADC
- Three Low-Noise, 8-Bit LED Current DACs
- Excellent Dynamic Range >89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
- Dynamic Range Extendable to >104dB for SpO2 and >110dB for HRM with Multiple Sample Modes and On-Chip Averaging
- Excellent Ambient Range and Rejection Capability
- > 100µA Ambient Photodetector Current
- > 70dB Ambient Rejection at 120Hz
- Ultra-Low-Power Operation for Body Wearable Devices
- Low-Power Operation, Optical Readout Channel <10µA Typical at 25sps
- Short Exposure Integration Period of 14.8µs, 29.4µs, 58.7µs, 117.3µs
- Low Shutdown Current = 0.6µA (typ)
- Rejection of Fast Ambient Transients
- Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP
- -40°C to +85°C Operating Temperature Range
MAX86141 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX86140/MAX86141 are ultra-low-power, com- pletely integrated, optical data acquisition sys...
- Complete Single-Channel, Optical Data Acquisition System
- Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
- Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
- Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
- High-Resolution, 19-bit Charge Integrating ADC
- Three Low-Noise, 8-Bit LED Current DACs
- Excellent Dynamic Range >89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
- Dynamic Range Extendable to >104dB for SpO2 and >110dB for HRM with Multiple Sample Modes and On-Chip Averaging
- Excellent Ambient Range and Rejection Capability
- > 100µA Ambient Photodetector Current
- > 70dB Ambient Rejection at 120Hz
- Ultra-Low-Power Operation for Body Wearable Devices
- Low-Power Operation, Optical Readout Channel <10µA Typical at 25sps
- Short Exposure Integration Period of 14.8µs, 29.4µs, 58.7µs, 117.3µs
- Low Shutdown Current = 0.6µA (typ)
- Rejection of Fast Ambient Transients
- Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP
- -40°C to +85°C Operating Temperature Range
MAX14819 Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers
The MAX14819/MAX14819A low-power, dual-channel, IO-Link® master transceiver with sensor/actuator...
- Low-Power Architecture
- 1Ω (typ) Driver On-Resistance
- 1.9mA (typ) Total Supply Current for 2 Channels
- Current Limiters with 15mV Sense Voltage
- Integrated IO-Link Framer Eliminates Need for External UARTs
- Integrated Cycle Timer Relieves Microcontroller from Timing-Critical Tasks
- High Configurability and Integration Reduce SKUs
- Two Auxiliary Type 1/Type 3 Digital Inputs
- Supports NPN Sensors
- Dual 24V Sensor Supply Controllers Include:
- Large Capacitive Load Charge Capability
- 2A and Higher Load Currents
- Integrated Protection Enables Robust Systems
- Reverse Polarity Protection on All Interface Pins
- Overvoltage Tolerance on All Interface Pins
- C/Q and DI Fully Compliant with IEC 61131-2
- C/Q Compliant with IO-Link 1.1.3
- Reverse Current Blocking on L+ and C/Q
- 65V Absolute Max Ratings for TVS Flexibility
- Glitch Filters for Improved Burst Resilience
- -40°C to +125°C Operating Temperature Range
MAX14819A Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers
The MAX14819/MAX14819A low-power, dual-channel, IO-Link® master transceiver with sensor/actuator...
- Low-Power Architecture
- 1Ω (typ) Driver On-Resistance
- 1.9mA (typ) Total Supply Current for 2 Channels
- Current Limiters with 15mV Sense Voltage
- Integrated IO-Link Framer Eliminates Need for External UARTs
- Integrated Cycle Timer Relieves Microcontroller from Timing-Critical Tasks
- High Configurability and Integration Reduce SKUs
- Two Auxiliary Type 1/Type 3 Digital Inputs
- Supports NPN Sensors
- Dual 24V Sensor Supply Controllers Include:
- Large Capacitive Load Charge Capability
- 2A and Higher Load Currents
- Integrated Protection Enables Robust Systems
- Reverse Polarity Protection on All Interface Pins
- Overvoltage Tolerance on All Interface Pins
- C/Q and DI Fully Compliant with IEC 61131-2
- C/Q Compliant with IO-Link 1.1.3
- Reverse Current Blocking on L+ and C/Q
- 65V Absolute Max Ratings for TVS Flexibility
- Glitch Filters for Improved Burst Resilience
- -40°C to +125°C Operating Temperature Range
MAX14819EVKIT Evaluation Kit for the MAX14819/MAX14819A
The MAX14819 evaluation kit (EV kit) consists of the evaluation board and software. The EV kit i...
- IO-Link-Compliant Device Transceiver
- IO and SPI Interface Terminals
- Windows 7-Compatible Software
- USB-PC Connection
- Proven PCB Layout
- Fully Assembled and Tested
MAX30101 High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX30101 is an integrated pulse oximetry and heart-rate monitor module. It includes internal...
- Heart-Rate Monitor and Pulse Oximeter Sensor in LED Reflective Solution
- Tiny 5.6mm × 3.3mm × 1.55mm 14-Pin Optical Module
- Integrated Cover Glass for Optimal, Robust Performance
- Ultra-Low Power Operation for Mobile Devices
- Programmable Sample Rate and LED Current for Power Savings
- Low-Power Heart-Rate Monitor (< 1mW)
- Ultra-Low Shutdown Current (0.7μA, typ)
- Fast Data Output Capability
- High Sample Rates
- Robust Motion Artifact Resilience
- High SNR
- -40°C to +85°C Operating Temperature Range
MAX22007EVKIT Evaluation Kit for the MAX22007
The MAX22007 evaluation kit (EV kit) provides the hard- ware and software necessary to evaluate ...
- Two Accessible Modes:
- Analog Output-Voltage Mode
- Analog Output-Current Mode
- Supports Load Impedance Detection
- Access to All GPIOs
- Windows® 10-Compatible Software
- Proven PCB Layout
- Fully Assembled and Tested
MAX22007 Four-Channel 12-Bit Configurable Analog Output with Integrated Voltage Reference
The MAX22007 is a software-configurable four-channel analog output device that drives a voltage ...
- Configurable Outputs
- Each Output Individually Configurable
- Internal Comparator to Allow Calculating Load Impedance for Voltage-Mode or Current-Mode
- Voltage Mode is 0V to 10.5V Linear Range with 12.5V Overrange for Loads from 1kΩ to 1MΩ
- Current Mode is 0mA to 21mA Linear Range with 25mA Overrange for Loads from 0Ω to 750Ω
- System Accuracy
- V/I Output Resolution is 12-Bits
- Factory Calibrated for Gain and Offset Error within ± 0.2% at +25°C
- V/I Total Unadjusted Error Less Than ± 1% from -40°C to +85°C
- Robust with Integrated Diagnostics
- ±42VP-P Protection for Output Drivers
- ±1kV Surge Protection with 4.99kΩ Series Resistors at Input Pins
- ±2.5kV HBM ESD Protection on All Pins
- Outputs have Short-Circuit and Overvoltage Protection with External Diodes
- Thermal Monitoring and Shutdown Protection
- Simple and Low-Cost Interface
- Up to 30MHz SPI Serial Interface with Optional 8-Bit CRC
- Daisy-Chain Mode to Reduce System Cost
- VDD = 2.7V to 5.5V for Easy Interface to the Microcontroller
- High Voltage Output Supplies:
- HVDD: +8V to +24V
- HVSS: -2V to 0V
- Robust Performance in a Compact Package
- -40°C to 85°C Operating Temperature Range
- 56-pin TQFN, 8mm x 8mm
MAX30134EVSYS Evaluation System for the MAX30131/MAX30132/MAX30134
The MAX30134 evaluation system provides a single platform to evaluate the functionality and feat...
- Convenient Platform to Evaluate the MAX30131/MAX30132/MAX30134
- Many Easy-to-Reach Test Points
- Multichannel Operation
- Windows® 7-, 8-, 10-Compatible GUI Software
- Fully Assembled and Tested
- Facilitates IEC61000-4-2 ESD Compliance Testing
- Ultra-Low-Power Design
MAX14821 IO-Link Device Transceiver
The MAX14821 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All ...
- Standards Compliance Ensures Future-Proof Solutions
- IO-Link Versions 1.0 and 1.1.2
- IEC IEC61131.9 SDCI
- High Configurability and Integration Reduces SKUs
- Push-Pull, PNP or NPN Driver Configuration
- Supports COM1, COM2, and COM3 Data Rates
- SPI Interface for Control and Monitoring
- 2.5V to 5V Logic Interface Levels
- Auxiliary 24V, 100mA Digital Output (DO)
- Auxiliary 24V Digital Input (DI)
- 100mA Specified C/Q output Drive
- Integrated 5V and 3.3V Regulators
- Integrated Protection Enables Robust Solutions
- Extensive Fault-Monitoring and Reporting
- Reverse-Polarity and Short-Circuit Protection on All 24V Outputs/Inputs
- Reverse-Polarity Protected 24V Supply Output
- -40°C to +105°C Operating Temperature Range
- Small Package Supports Sensor Miniaturization
- 2.5mm x 2.5mm WLP and 4mm x 4mm TQFN Package
MAX86140 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX86140/MAX86141 are ultra-low-power, com- pletely integrated, optical data acquisition sys...
- Complete Single-Channel, Optical Data Acquisition System
- Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
- Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
- Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
- High-Resolution, 19-bit Charge Integrating ADC
- Three Low-Noise, 8-Bit LED Current DACs
- Excellent Dynamic Range >89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
- Dynamic Range Extendable to >104dB for SpO2 and >110dB for HRM with Multiple Sample Modes and On-Chip Averaging
- Excellent Ambient Range and Rejection Capability
- > 100µA Ambient Photodetector Current
- > 70dB Ambient Rejection at 120Hz
- Ultra-Low-Power Operation for Body Wearable Devices
- Low-Power Operation, Optical Readout Channel <10µA Typical at 25sps
- Short Exposure Integration Period of 14.8µs, 29.4µs, 58.7µs, 117.3µs
- Low Shutdown Current = 0.6µA (typ)
- Rejection of Fast Ambient Transients
- Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP
- -40°C to +85°C Operating Temperature Range
MAX86141 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX86140/MAX86141 are ultra-low-power, com- pletely integrated, optical data acquisition sys...
- Complete Single-Channel, Optical Data Acquisition System
- Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
- Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
- Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
- High-Resolution, 19-bit Charge Integrating ADC
- Three Low-Noise, 8-Bit LED Current DACs
- Excellent Dynamic Range >89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
- Dynamic Range Extendable to >104dB for SpO2 and >110dB for HRM with Multiple Sample Modes and On-Chip Averaging
- Excellent Ambient Range and Rejection Capability
- > 100µA Ambient Photodetector Current
- > 70dB Ambient Rejection at 120Hz
- Ultra-Low-Power Operation for Body Wearable Devices
- Low-Power Operation, Optical Readout Channel <10µA Typical at 25sps
- Short Exposure Integration Period of 14.8µs, 29.4µs, 58.7µs, 117.3µs
- Low Shutdown Current = 0.6µA (typ)
- Rejection of Fast Ambient Transients
- Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP
- -40°C to +85°C Operating Temperature Range
MAX14819 Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers
The MAX14819/MAX14819A low-power, dual-channel, IO-Link® master transceiver with sensor/actuator...
- Low-Power Architecture
- 1Ω (typ) Driver On-Resistance
- 1.9mA (typ) Total Supply Current for 2 Channels
- Current Limiters with 15mV Sense Voltage
- Integrated IO-Link Framer Eliminates Need for External UARTs
- Integrated Cycle Timer Relieves Microcontroller from Timing-Critical Tasks
- High Configurability and Integration Reduce SKUs
- Two Auxiliary Type 1/Type 3 Digital Inputs
- Supports NPN Sensors
- Dual 24V Sensor Supply Controllers Include:
- Large Capacitive Load Charge Capability
- 2A and Higher Load Currents
- Integrated Protection Enables Robust Systems
- Reverse Polarity Protection on All Interface Pins
- Overvoltage Tolerance on All Interface Pins
- C/Q and DI Fully Compliant with IEC 61131-2
- C/Q Compliant with IO-Link 1.1.3
- Reverse Current Blocking on L+ and C/Q
- 65V Absolute Max Ratings for TVS Flexibility
- Glitch Filters for Improved Burst Resilience
- -40°C to +125°C Operating Temperature Range
MAX14819A Dual IO-Link Master Transceiver with Integrated Framers and L+ Supply Controllers
The MAX14819/MAX14819A low-power, dual-channel, IO-Link® master transceiver with sensor/actuator...
- Low-Power Architecture
- 1Ω (typ) Driver On-Resistance
- 1.9mA (typ) Total Supply Current for 2 Channels
- Current Limiters with 15mV Sense Voltage
- Integrated IO-Link Framer Eliminates Need for External UARTs
- Integrated Cycle Timer Relieves Microcontroller from Timing-Critical Tasks
- High Configurability and Integration Reduce SKUs
- Two Auxiliary Type 1/Type 3 Digital Inputs
- Supports NPN Sensors
- Dual 24V Sensor Supply Controllers Include:
- Large Capacitive Load Charge Capability
- 2A and Higher Load Currents
- Integrated Protection Enables Robust Systems
- Reverse Polarity Protection on All Interface Pins
- Overvoltage Tolerance on All Interface Pins
- C/Q and DI Fully Compliant with IEC 61131-2
- C/Q Compliant with IO-Link 1.1.3
- Reverse Current Blocking on L+ and C/Q
- 65V Absolute Max Ratings for TVS Flexibility
- Glitch Filters for Improved Burst Resilience
- -40°C to +125°C Operating Temperature Range
MAX14819EVKIT Evaluation Kit for the MAX14819/MAX14819A
The MAX14819 evaluation kit (EV kit) consists of the evaluation board and software. The EV kit i...
- IO-Link-Compliant Device Transceiver
- IO and SPI Interface Terminals
- Windows 7-Compatible Software
- USB-PC Connection
- Proven PCB Layout
- Fully Assembled and Tested
MAX30101 High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX30101 is an integrated pulse oximetry and heart-rate monitor module. It includes internal...
- Heart-Rate Monitor and Pulse Oximeter Sensor in LED Reflective Solution
- Tiny 5.6mm × 3.3mm × 1.55mm 14-Pin Optical Module
- Integrated Cover Glass for Optimal, Robust Performance
- Ultra-Low Power Operation for Mobile Devices
- Programmable Sample Rate and LED Current for Power Savings
- Low-Power Heart-Rate Monitor (< 1mW)
- Ultra-Low Shutdown Current (0.7μA, typ)
- Fast Data Output Capability
- High Sample Rates
- Robust Motion Artifact Resilience
- High SNR
- -40°C to +85°C Operating Temperature Range
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