Top
/content/maximintegrated/en/products/sensors/healthcare-sensor-ics/electrochemical-sensor-afe-ics

An electrochemical sensor measures the output of a chemical reaction which occurs in response to an electrical signal applied to the reaction site using two or more electrodes. Electrochemical sensors for healthcare applications are located in disposable, wearable patches to perform continuous analysis of body-fluid composition, e.g., continuous glucose monitoring (CGM) of diabetes patients. Our ultra-low-power electrochemical sensor AFE ICs are ideal for use in these applications, lowering healthcare costs while improving health outcomes.

Key Features Include:

  • Provides sensors with electrochemical impedance spectroscopy (EIS) measurement capability
  • Low AFE bias current extends electrochemical sensor battery life
  • Works with 1-, 2-, or 3-terminal electrochemical sensors
  • Tiny form factor (WLP package)
  • High integration (temperature sensor and very low operating power alarms for compliance)

Design Solutions

Technical Documentation

*Required

Technical Documents

Showing of View Top 100 Results View All Result(s)

Part Number Title Document Type Date

MAX30131 1-, 2-, 4-Channel, Ultra-Low Power Electrochemical Sensor AFEs

The MAX30131/MAX30132/MAX30134 are 1, 2 and 4 channel (respectively) ultra-low power programmabl...
  • Multichannel Operation
    • Up to Four ndependent DC Channels
    • 1 Switchable EIS Channel
  • High Accuracy and Precision
    • Up to Four 12-Bit Voltage DACs
    • Up to Four 16-Bit Current ADCs
      • Programmable 0.8pA to 30pA Resolution
    • One 16-Bit EIS ADC
      • Programmable 0.014Hz to 27kHz Sine Wave Drive
    • 12-Bit Voltage System ADC
    • 16-Bit Temperature Sensor
    • Programmable, 30ppm/°C Voltage Reference
  • Autonomous Modes with 256 Word Configurable FIFO and Programmable Alarm
  • Long Battery Life for 2- and 3-Terminal Sensors
    • 3.5μA Continuous Bias Supply Current for Single 2- or 3-Terminal Sensor
    • Add 0.25μA for Each Additional Sensor
  • Small Size
    • 25-Bump WLP 2.93 x 2.93mm
  • Safety and Compliance
    • Monitor Sensor Bias Voltages for Compliance
    • Monitor Supply/Battery Voltage and Temperature
  • Simple and Robust Digital Interface
    • 8MHz 4-Wire SPI Interface
    • Programmable Interrupt
    • Four Programmable GPIOs
  • IEC61000-4-2 ESD: ±15kV Air, ±8kV Contact On Sensor Pins

MAX30132 1-, 2-, 4-Channel, Ultra-Low Power Electrochemical Sensor AFEs

The MAX30131/MAX30132/MAX30134 are 1, 2 and 4 channel (respectively) ultra-low power programmabl...
  • Multichannel Operation
    • Up to Four ndependent DC Channels
    • 1 Switchable EIS Channel
  • High Accuracy and Precision
    • Up to Four 12-Bit Voltage DACs
    • Up to Four 16-Bit Current ADCs
      • Programmable 0.8pA to 30pA Resolution
    • One 16-Bit EIS ADC
      • Programmable 0.014Hz to 27kHz Sine Wave Drive
    • 12-Bit Voltage System ADC
    • 16-Bit Temperature Sensor
    • Programmable, 30ppm/°C Voltage Reference
  • Autonomous Modes with 256 Word Configurable FIFO and Programmable Alarm
  • Long Battery Life for 2- and 3-Terminal Sensors
    • 3.5μA Continuous Bias Supply Current for Single 2- or 3-Terminal Sensor
    • Add 0.25μA for Each Additional Sensor
  • Small Size
    • 25-Bump WLP 2.93 x 2.93mm
  • Safety and Compliance
    • Monitor Sensor Bias Voltages for Compliance
    • Monitor Supply/Battery Voltage and Temperature
  • Simple and Robust Digital Interface
    • 8MHz 4-Wire SPI Interface
    • Programmable Interrupt
    • Four Programmable GPIOs
  • IEC61000-4-2 ESD: ±15kV Air, ±8kV Contact On Sensor Pins

MAX30134 1-, 2-, 4-Channel, Ultra-Low Power Electrochemical Sensor AFEs

The MAX30131/MAX30132/MAX30134 are 1, 2 and 4 channel (respectively) ultra-low power programmabl...
  • Multichannel Operation
    • Up to Four ndependent DC Channels
    • 1 Switchable EIS Channel
  • High Accuracy and Precision
    • Up to Four 12-Bit Voltage DACs
    • Up to Four 16-Bit Current ADCs
      • Programmable 0.8pA to 30pA Resolution
    • One 16-Bit EIS ADC
      • Programmable 0.014Hz to 27kHz Sine Wave Drive
    • 12-Bit Voltage System ADC
    • 16-Bit Temperature Sensor
    • Programmable, 30ppm/°C Voltage Reference
  • Autonomous Modes with 256 Word Configurable FIFO and Programmable Alarm
  • Long Battery Life for 2- and 3-Terminal Sensors
    • 3.5μA Continuous Bias Supply Current for Single 2- or 3-Terminal Sensor
    • Add 0.25μA for Each Additional Sensor
  • Small Size
    • 25-Bump WLP 2.93 x 2.93mm
  • Safety and Compliance
    • Monitor Sensor Bias Voltages for Compliance
    • Monitor Supply/Battery Voltage and Temperature
  • Simple and Robust Digital Interface
    • 8MHz 4-Wire SPI Interface
    • Programmable Interrupt
    • Four Programmable GPIOs
  • IEC61000-4-2 ESD: ±15kV Air, ±8kV Contact On Sensor Pins