DC1363A

DC1363A is a general purpose high side current-sense amplifier featuring the LT6107. This demo board amplifies an on-board current-sense resistor voltage-drop, providing a precision uni-polar output voltage proportional to load current. The demo circuit includes scaling resistors that program the gain of the circuit to 50V/V. The LT6107 is powered from the same supply that the sense resistor is connected to and provides a ground referenced output. The LT6107 can perform current measurements on supplies ranging from 2.7V to 36V. Since the output voltage is developed as a controlled current through a load resistance, ground loop errors can be eliminated by simply locating the load resistor at the destination point (subsequent signal processing such as A/D conversion). Remote loading can be evaluated by simply removing the on board load resistor (R3). DC1363 is fabricated from FR-406 high-temp epoxy glass so that the full 150° operation of the LT6107 can be demonstrated.

• Measurement output signal of 2.5 V(IOUT = 5A)
• Output load current range of 5A
• VIN quiescent current of 65µA (VIN =12V, IOUT = 0A )
• VMON step-response time of 5µs (IOUT step from 0A to 5A )