Vital IC

NMS4112

Low Power Electrochemical Sensor Readout Integrated Circuit (ROIC)

Features

  • Single Battery Operation

  • Level & Time Variant Potential Generation

  • Precise Current Measurement (~500pA)

  • 2/3-termial Electrochemical Sensor

  • 2-channel Input (2 Working Elctrode)

  • Chronoamperometry/Amperometric/Potentiometric

  • I2C/SPI Interface

  • Sensor Detection

  • Temperature Sensor

  • Low Power Operation : periodic wakeup & shutdown

  • NVM for configuration storage

  • Working Voltage : 1.2V ~ 1.5V

Block Diagram

Target Applications

Continuous Glucose Monitoring

  • Chronoamperometry for continuous 3-terminal (WE, RE, CE) glucose sensor

  • Chronoamperometry for continuous 2-terminal (WE, RE/CE) glucose sensor

 

Potentiostat for 2/3-terminal electrochemical sensor

  • Amperometric

  • Potentiometric

 

Biopotentiostat for 3-terminal electrochemical
Instrumental Amplifier

Applicable Sensor Configuration

Electrical Specification

  • TBD