Patent ID: 7608873

Claim:
A photodiode device comprising: a source follower (SF) transistor having first and second terminals and a gate terminal, the first terminal being electrically coupled to a power supply, the second terminal being electrically coupled to a pixel output line, the gate terminal being electrically coupled to a floating diffusion (FD) node; a reset transistor having a first and second terminals and a gate terminal, the first terminal of the reset transistor being electrically coupled to the FD node, the second terminal of the reset transistor being electrically coupled to a select (SEL) terminal that receives a SEL timing signal, the gate terminal of the reset transistor being directly connected to the pixel output line; a transfer (TX) transistor having first and second terminals and a gate terminal, the gate terminal of the TX transistor being electrically coupled to a TX terminal that receives a TX timing signal, the first terminal of the TX transistor being electrically coupled to the FD node; and a photodiode having a cathode terminal and an anode terminal, the cathode terminal being electrically coupled to the second terminal of the TX transistor, the anode terminal being electrically coupled to ground.