SparkFun Current Sensor Breakout - INA169 Brand_Panavise 3V Interface 3-wire SPI

3V Interface 3-wire SPI

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SPI I2C BS1 0 1 BS2 0 1 CS Chip select NC DC Data/Command I2C address selection DIN MOSI SDA CLK SCK SCL

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All terminals are labelled on the PCB silkscreen

SparkFun Current Sensor Breakout - INA169 Brand_Panavise 3V Interface 3-wire SPIThe INA169 is a high side current monitor, which means that you place a resistor (a shunt resistor) on the positive power rail and the INA169 measures the voltage drop across that resistor. The INA169 outputs a small current based on the measured voltage drop. If you place a resistor from the output of the INA169 to ground, you can measure the voltage at the output. Input common mode and power supply voltages are independent and can range from 2. 7V