Patent ID: 9443610
Filing Date: 2016-09-13
CPC Classification: G01R,G11C

Claim Text:
1. A system comprising: a first switch electrically coupled between a first node configured to receive a first reference voltage and a second node; an amplifier having a first input, a second input, and an output, the amplifier to receive a second reference voltage on the first input and a sample voltage on the second input; a second switch electrically coupled between the output of the amplifier and the second input of the amplifier; a capacitor electrically coupled between the second input of the amplifier and the second node; and a controller to control the first switch and the second switch; wherein the first switch and the second switch are closed to initialize the second node to the first reference voltage and to initialize the amplifier in unity-gain configuration, and wherein the first switch and the second switch are opened to detect a leakage current by sensing a change in the sample voltage.