Patent ID: 9576526
Date: 2017-02-21
CPC Classifications: G05F,G09G

Claim:
1. A semiconductor device comprising: a current source circuit; a transistor; a capacitor; and an operational amplifier, wherein one of a source and a drain of the transistor is electrically connected to the current source circuit, wherein an inverting input terminal of the operational amplifier is electrically connected to the one of the source and the drain of the transistor such that the inverting input terminal of the operational amplifier is configured to be supplied with a potential of the one of the source and the drain of the transistor, wherein an output terminal of the operational amplifier is electrically connected to the other of the source and the drain of the transistor, and wherein a gate of the transistor is electrically connected to an electrode of the capacitor and electrically connected to a non-inverting input terminal of the operational amplifier.