A 280-μ V Temporal Noise, 76-dB Dynamic Range CMOS Image Sensor With an In-Pixel Chopping-Based Low-Frequency Noise Reduction Technique

Analysis of analog correlated multiple sampling noise reduction in low noise CMOS image sensor

“…Using the intra-pixel chopper technique can effectively reduce the low-frequency noise and 1/f noise, which are the main components of the time domain noise in SF [4]. This technique is mainly used in 3T pixel structures and is temporarily unavailable in 4T pixel-based image sensors [5]. In addition, using a low-noise readout circuit is an effective way to reduce noise.…”