Term · Photonics, MEMS & Sensors
4T pixel (Four-Transistor pixel)
The standard CMOS active pixel, combining a pinned photodiode with a transfer gate, reset transistor, source follower and row-select transistor, enabling correlated double sampling.
- Also known as
- 4T APS
- Type
- Term
- Domain
- Photonics, MEMS & Sensors, Image sensors
Notes
The earlier 3T pixel lacked a transfer gate and so could not do true CDS, leaving it noisier.
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