Patent ID: 9264001
Filing Date: 2016-02-16
CPC Classification: H03F,H04B

Claim Text:
1. A transimpedance amplifier (TIA) device comprising: a semiconductor substrate comprising a plurality of CMOS cells, each of the CMOS cells comprising a deep n-type well region; a first TIA comprising a first input terminal and a first output terminal, the first TIA configured using a plurality of first CMOS cells; a second TIA comprising a second input terminal and a second output terminal, the second TIA configured using a plurality of second CMOS cells such that the second input terminal is operable at any positive voltage level with respect to an applied voltage to a deep n-well for each of the plurality of second CMOS cells; a photodiode coupled between the first input terminal and the second input terminal; and a Level Shifting/Differential Amplifier (LS/DA) coupled to the first output terminal and the second output terminal.