Patent ID: 7679372

Claim:
A testing apparatus for testing a device under test, comprising: a test signal generating section that generates a test signal to be supplied to the device under test; a driver that outputs the test signal; a first switch that is disposed on a wire between the driver and a first terminal of the device under test; a second switch that is disposed on a wire between the driver and a second terminal of the device under test; a connection control section that (i) turns on the first switch and turns off the second switch when the test signal is supplied to the first terminal of the device under test, and (ii) turns off the first switch and turns on the second switch when the test signal is supplied to the second terminal of the device under test; a first voltage output section that is connected to a wire between the first switch and the first terminal when the first switch is off, to supply a predetermined first reference voltage to the first terminal; and a second voltage output section that is connected to a wire between the second switch and the second terminal when the second switch is off, to supply a predetermined second reference voltage to the second terminal.