Characterisation of analogue front end and time walk in CMOS active pixel sensor

CMOS Active Pixel Image Sensor

This paper addresses the development of a micropower 176 144 CMOS active pixel image sensor that dissipates one to two orders of magnitude less power than current state-of-the-art CMOS image sensors. The chip operates from a 1.5-V voltage source and the power consumption measured for the chip running from an internal 25.2-MHz clock yielding 30 frames per second is about 550 W. This amount enabl...

Active Pixel Sensor CMOS Operating Multi - Sampled in Time Domain

Programmable multiresolution CMOS active pixel sensor

CMOS active pixel sensors (APS) allow the flexibility of placing signal processing circuitry on the imaging focal plane. The multiresolution CMOS APS can perform block averaging on-chip to eliminate the off-chip software intensive image processing. This 128 x 128 APS array can be read out at any user-defined resolution by configuring a set of digital shift registers. The full resolution frame r...

A 35mm 13.89 Million Pixel CMOS Active Pixel Image Sensor

This paper discusses a 13.89 million pixels CMOS image sensor for digital SLR cameras. The pitch of the 3transistor active pixel is 8 microns. The sensor has a full well charge of 117K electrons and 33 electrons temporal noise, and a dynamic range of 71 dB. The fixed pattern noise is 0.14% RMS, obtained by an on-chip correction circuit. Color filters have been optimized for best photographic pe...

Frame-Transfer CMOS Active Pixel Sensor with Pixel Binning

The first frame-transfer CMOS active pixel sensor (APS) is reported. The sensor architecture integrates an array of active pixels with an array of passive memory cells. Charge integration amplifier-based readout of the memory cells permits binning of pixels for variable resolution imaging. A 32 32 element prototype sensor with 24m pixel pitch was fabricated in 1.2m CMOS and demonstrated.