The 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 to 60V on the INA169 and quiescent (sleep) current is only 60uA. Resources * Schematic * Eagle Files * Datasheet (INA169) * Hookup Guide * GitHub https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2023-03-07 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2023-08-17 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2023-12-27 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2024-09-18 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2024-11-29 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2024-11-30 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2025-04-10 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2025-04-29 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2025-11-28 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2025-11-29 https://elecena.pl/product/22728253/sparkfun-current-sensor-breakout-ina169 2026-01-08