128 x 128 CMOS Image Sensor With Analog Memory for Synchronous Image Capture

Chapinal, Genis; Bota, Sebastian A.; Moreno, Mauricio; Palacín Roca, Jordi; Herms, Atilà

doi:https://doi.org/10.1109/JSEN.2002.1000252

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Issue date

2002

Author

Chapinal, Genis

Bota, Sebastian A.

Moreno, Mauricio

Palacín Roca, Jordi

Herms, Atilà

Abstract

A 128 x 128 CMOS imager that permits synchronous capture is presented. The sensor combines the best of CMOS imagers (low-power, random readout, nondestructive readout, single supply voltage…) and synchronous capture [available in high-end charge coupled device (CCD) imagers]. The key point in obtaining such

characteristics is the separation of the photosensor and the storage element. Although some sensors with these characteristics have been reported, in this sensor, the storage capability has been brought a step further, having storage times in the order of tens of seconds, and being able to use the array itself as a random access memory (RAM). This could avoid the use of external RAM, making the system simpler, more compact, and of low-power consumption.

URI

http://hdl.handle.net/10459.1/57195

DOI

https://doi.org/10.1109/JSEN.2002.1000252

Is part of

IEEE Sensors Journal, 2002, vol. 2, p. 120-127