Wolfson Microelectronics plc: Products : Discontinued

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WM8194

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14-Bit, 12MSPS Image Digitiser
THIS PRODUCT HAS BEEN DISCONTINUED FEATURES 14-bit resolution ADC 12MSPS 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, 7 or 4-bit wide multiplexed data output formats On-chip voltage reference 28-pin SOIC package	DESCRIPTION The WM8194 is a 14-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 12MSPS. The device has three separate analogue signal processing channels. Each channel 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 14-bit Analogue to Digital Converter. The digital output data is available in 8, 7 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 WM8194 typically only consumes 330mW when operating from a single 5V supply.

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DATA SHEET
WM8194 Rev 2.0 (2431 k )

RELATED PRODUCTS
WM8196
WM8190

EVALUATION BOARDS
WM8194EV1M

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