Patent ID: 8604815
Filing Date: 2013-12-10
Classification: G01R

Abstract:
1. A pin electronics circuit comprising: an input/output pin connected to a device under test via a transmission line; a driver configured to generate a test signal to be supplied to the device under test; an output resistor and a driver-side switch arranged in series between the driver and the input/output pin; a comparator arranged such that an input terminal thereof is connected to the input/output pin, and configured to judge the level of a signal output from the device under test; and a short-circuit switch arranged between the input/output pin and a ground terminal, wherein the short-circuit switch is further arranged at a position nearest to the input/output pin so as to provide a low impedance state in which the impedance is near to zero when the short-circuit switch is on; wherein the aforementioned components are integrated on a single semiconductor chip.