128 x 128 CMOS Image Sensor With Analog Memory for Synchronous Image Capture
Issue date
2002Suggested citation
Chapinal, Genis;
Bota, Sebastian A.;
Moreno, Mauricio;
Palacín Roca, Jordi;
Herms, Atilà;
.
(2002)
.
128 x 128 CMOS Image Sensor With Analog Memory for Synchronous Image Capture.
IEEE Sensors Journal, 2002, vol. 2, p. 120-127.
https://doi.org/10.1109/JSEN.2002.1000252.
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Show full item recordAbstract
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.