Linear image sensor has high dynamic range

The C640 linear image sensor with 4000 photodiode elements of 7 × 7-µm pixels has integrated programmable gain amplifier, 12 bit-A/D converter, voltage regulator, low-voltage differential amplifier, and timing generator built to deliver a 28-mm imaging length. Thermal noise is less than 2 LSB. Saturation is 4096 LSB, giving the device more than 2000:1 of the dynamic range. The image-processing function controls include coarse gain (2 bits control) or fine gain (3 bits).

The C640 linear image sensor with 4000 photodiode elements of 7 × 7-µm pixels has integrated programmable gain amplifier, 12 bit-A/D converter, voltage regulator, low-voltage differential amplifier, and timing generator built to deliver a 28-mm imaging length. Thermal noise is less than 2 LSB. Saturation is 4096 LSB, giving the device more than 2000:1 of the dynamic range. The image-processing function controls include coarse gain (2 bits control) or fine gain (3 bits), and both can be latched through external latch start pulse.
CMOS Sensor
Cupertino, CA, USA
www.csensor.com

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