INA260 Voltage, Current, Power Sensor Breakout with I2C Interface - 7Semi

What Is INA260?

• A high-precision power monitoring sensor that measures: Voltage Current Power (calculated internally)

• Based on the Texas Instruments INA260 IC.

• Includes a built-in precision shunt resistor, so no external resistor is needed.

Key Features

• All-in-One Measurement: Voltage + Current + Power

• Built-in Shunt Resistor (Simplifies design)

• High Accuracy (16-bit ADC)

• I2C Digital Interface (easy communication)

• Programmable Alerts (overcurrent/overvoltage)

• Supports High-Side & Low-Side Sensing

• Compact breakout board

  Pin Configuration

  • VCC 3.3V / 5V

  • GND Ground

  • SDA I2C Data

  • SCL I2C Clock

   

  Power Terminals

  • VIN+ Input from power source

  Current flows through VIN+ VIN.

  How It Works

  • Current flows through the internal precision shunt resistor.

  • The sensor measures:

    • Voltage drop across shunt Current

    • Bus voltage Voltage

  • Internal ADC converts readings into digital values.

  • Sensor calculates power = voltage current internally.

  • Data is sent to microcontroller via I2C.

  Output Data

  • Voltage (V)

  • Current (A)

  • Power (W)

  No complex calculations needed in code.

  Applications

  • Battery monitoring systems

    trong>Power supply monitoring

  • IoT energy tracking devices

  • Embedded systems power analysis

  • Industrial automation systems

   

  Important Notes

  • More Accurate than INA219 (built-in shunt improves precision)

  • Higher Cost compared to basic current sensors

  • I2C Required (not analog output)

  • Good for DC systems (not designed for AC measurement)

   

  Summary

  • Type: Digital voltage, current & power monitor

  • Interface: I2C

  • Range: Up to 36V bus voltage

  • Special Feature: Built-in shunt + internal power calculation

  • Use Case: Accurate power monl