ON Semiconductor, a supplier of high performance silicon solutions for energy efficient electronics, has introduced a CMOS image sensor suited to high-end biometric applications such as fingerprint detection as well as several medical device designs. The Mano 9600 is a rolling shutter 9.6 Megapixel (3,840 x 2,500 pixel) device that runs at 20fps at full resolution.
The sensor, which complements ON Semiconductor's existing range of image sensor products, utilises new technology to help it achieve a maximum signal-to-noise ratio (SNR) performance of 41 decibels (dB) without the need for oversampling.
Available in both monochrome and colour versions, the Mano 9600 achieves high frame rates in either single region of interest (ROI) or sub-sampled readout modes. Image data is read out through gain and offset amplifiers before being fed to an on-board 10-bit analogue-to-digital converter (ADC). The digital data is then transferred over four industry-standard low-voltage differential signalling (LVDS) outputs; a version with a single 10-bit CMOS output is also available. An on-board sequencer, programmable over a serial peripheral interface (SPI), generates all internal timing for exposure control and also supports readout mode.
Numerous other on-chip features such as a charge pump, fixed pattern noise (FPN) correction and bias control for power supply regulation help simplify implementation of the sensor into customer applications and reduce overall component counts. Power consumption is 500mW at 20fps, and 200mW at 5fps. Operating temperature range is 0ºC to +70ºC.
