DC1536A

DC1536A demonstration circuit is a general purpose high side current-sense amplifier featuring the LTC6102-1. This demo board amplifies an on-board current-sense resistor voltage-drop, providing a precision uni-polar output voltage proportional to load current through the sense resistor. The demo circuit includes scaling resistors that program the gain of the circuit to 33.3V/V. The LTC6102-1 is powered from the same supply that the sense resistor is connected to and provides a ground referenced output. The LTC6102-1 can perform current measurements on supplies ranging from 4V to 60V. Since the output voltage is a function of controlled current through Rout, ground-loop errors can be eliminated by simply locating Rout at the destination point (subsequent signal processing such as A/D conversion). Remote positioning of Rout can be evaluated by simply removing the on board Rout resistor (R3).

• 2V measurement output signal
• 400µA measurement output signal (current mode)
• 230µA typical quiescent current (VIN =12V, IOUT = 0A)