7Semi INA237 85V 10A 16-bit DC Current Voltage Power Monitor Module Qwiic I2C

The 7Semi INA237 Current, Voltage and Power Monitoring Breakout Board is a precision digital power measurement module designed for monitoring DC current, bus voltage, power consumption, and internal sensor temperature. Built around the Texas Instruments INA237, it integrates a 16-bit ADC, programmable conversion settings, and an I2C communication interface for accurate power monitoring.

The board features an onboard 10mOhm current-sensing shunt resistor and supports bus voltage measurements from 0V to 85V. The INA237 provides selectable shunt voltage ranges of +/-40.96mV and +/-163.84mV, programmable conversion time, averaging, and alert functionality.

Two Qwiic connectors simplify integration with compatible microcontrollers and development boards, while the screw terminal provides convenient connections for the monitored circuit. The breakout also exposes power, I2C, and alert connections for flexible embedded integration.

Suitable for battery monitoring, DC power supplies, industrial automation, energy measurement, and embedded power management applications.

Key Features

• 4-in-1 Power Monitoring: Measures DC current, bus voltage, calculated power, and internal sensor die temperature.

• 16-Bit ADC: Integrates a high-resolution 16-bit ADC for precision power measurements.

• Up to 85V Bus Monitoring: Supports bus voltage measurement from 0V to 85V.

• 10mOhm Shunt Resistor: Features an onboard R010 current-sensing resistor for measuring voltage drop across the monitored current path.

• Selectable Current Measurement Range: Supports +/-40.96mV and +/-163.84mV shunt voltage ranges.

• High-Speed I2C Interface: Supports I2C communication up to 2.94MHz with compatible controllers.

• Selectable I2C Address: Features a default address of 0x45 with additional board-listed address options of 0x40, 0x41, and 0x44.

• Dual Qwiic Connectivity: Features two Qwiic connectors for convenient connection to compatible I2C systems.

• Programmable Alert Output: Supports configurable alerts for current, voltage, power, temperature, and conversion-ready events.

• Configurable Measurement Settings: Supports programmable conversion time and sample averaging for different measurement requirements.

• Screw Terminal Connection: Provides a convenient terminal interface for connecting the monitored power circuit.

• Compact PCB Design: Features a 24 x 21 mm board with four mounting holes for embedded integration.

• Versatile Applications: Suitable for DC power monitoring, battery systems, industrial automation, and energy measurement.

Items Included:

• 1 x 7Semi INA237 Current and Voltage Sensor Breakout Board

• 1 x Pin Header Strip

Note: Qwiic cable is not included.

Datasheet

DXF File

Step file