Demonstration circuit 2193A features the LT®6118, a high side current sense amplifier with a comparator and a 400mV reference.
The demo board circuit amplifies the voltage across an onboard current sense resistor, to provide a precision unipolar voltage output that is proportional to the sensed current. The board has one on-board latching comparator and an integrated 400mV reference that sets the threshold for the comparator.