The ISL28022EVKIT1Z and ISL28023EVKIT1Z, digital power monitor evaluation kits demonstrate the functionality of the ISL28022 and ISL28023, Precision Digital Power Monitors. They feature bidirectional, high-side and low-side digital current sense and voltage monitoring with serial interface. The ISL28023 includes an 8-bit voltage output DAC which enables output voltage margining with DC-DC converters.

Bus voltage sense from zero to 60 V
16-bit ADC monitors current and voltage
Handles negative system voltage
Over-voltage/Under-voltage and current fault monitoring
Real-time alerts
I²C/SMBus serial interface; operates down to 1.2 V
Operating voltages from 3 V to 5.5 V
Internal 3.3 V voltage regulator (ISL28023)
Internal Temperature Sensor accuracy: +1°C (ISL28023)

Current Sensing Amplifiers have a voltage output that is proportional to the volt drop across a very low value resistor, usually in a high-current power rail. Hence they measure the current flowing in that power rail.