Wolfson Microelectronics plc: Products : Imaging sensor ADCs

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WM8199

Further information

3-channel high speed CCD/CIS ADC
FEATURES 16-bit resolution ADC 20MSPS conversion rate Low power ? 330mW typ. 5V single supply or 5V/3.3V dual supply operation Single or 3-channel operation Programmable gain (8-bit resolution) Programmable offset (8-bit resolution) Programmable clamp voltage 8, or 4-bit wide multiplexed data output formats On-chip voltage reference 28-pin SSOP package	DESCRIPTION The WM8199 is a 16-bit analogue front end/digitiser IC that processes and digitises the analogue output signals from CCD sensors or Contact Image Sensors (CIS) at pixel sample rates of up to 20MSPS. The device includes three analogue signal processing channels each of which contains Reset Level Clamping, Correlated Double Sampling and Programmable Gain and Offset adjust functions. Three multiplexers allow single channel processing. The output from each of these channels is time multiplexed into a single high-speed 16-bit Analogue-to-Digital Converter. The digital output data is available in 8 or 4-bit wide multiplexed format. An internal 4-bit DAC is supplied for internal reference level generation. This may be used during CDS to reference CIS signals or during Reset Level Clamping to clamp CCD signals. An external reference level may also be supplied. ADC references are generated internally, ensuring optimum performance from the device. Using an analogue supply voltage of 5V and a digital interface supply of either 5V or 3.3V, the WM8199 typically only consumes 330mW when operating from a single 5V supply.

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DATA SHEET
WM8199 Rev 4.3 (388 k )

RELATED PRODUCTS
WM8196
WM8192

EVALUATION BOARDS
WM8199EV1M

APPLICATION NOTES

WM8199 Differential Mode

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