Method and system for resetting image sensors

An image sensor comprising:

• a reset transistor having a drain and a source;
• a photodiode connected to said reset transistor;
• reset drain voltage circuitry connected to said drain of said reset transistor;
• reset gate voltage circuitry connected to said gate of said reset transistor;
• wherein during a reset operation, said reset drain voltage circuitry supplies a drain voltage to said drain approximately at a maximum potential, and said reset gate voltage circuitry supplies a gate voltage to said gate, wherein said gate voltage ramps down during a ramp down period so that said reset transistor performs sub-threshold conduction.

A method of resetting a photodiode of an image sensor, said photodiode connected to a reset transistor having a drain and a source, said method comprising:

• supplying a drain voltage to said drain of said reset transistor approximately at a maximum potential;
• supplying a gate voltage to said gate;
• and
• ramping down said gate voltage during a ramp down period so that said reset transistor performs sub-threshold conduction.