IMAGE SENSORS WITH IN-PIXEL AMPLIFICATION CIRCUITRY

An image sensor may include an imaging pixel, readout circuitry, and amplification circuitry coupled between the imaging pixel and the readout circuitry. Correlated double sampling may be used to sample a reset voltage and a signal voltage from the imaging pixel. The difference between the reset voltage and the signal voltage may reflect the amount of light received by the imaging pixel during an integration time. The amplification circuitry may amplify the difference between the reset voltage and the signal voltage. The amplification circuitry may include a source follower transistor coupled between first and second capacitors, with the second capacitor having a greater capacitance than the first capacitor. The amplification circuitry may be formed only from n-type metal-oxide-semiconductor transistors. The amplification circuitry may consume power dynamically as opposed to consuming static power for minimal power consumption requirements.