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WM8150 Datasheet PDF

Wolfson Microelectronics plc WM8150

The WM8150 is a 12-bit analogue front end/digitiser IC which processes and digitises the analogue output signals from CCD sensors or Contact Image Sensors (CIS) at pixel sample rates of up to 8MSPS. The device includes a complete analogue signal processing channel containing Reset Level Clamping, Correlated Double Sampling, Programmable Gain and Offset adjust functions. The output from this channel is time multiplexed into a high-speed 12-bit Analogue to Digital Converter.
Part No. WM8150
Datasheet WM8150 Download
Manufacturer
Wolfson Microelectronics plc
Description SINGLE CHANNEL 12 BIT CIS/CCD AFE WITH 4 BIT WIDE OUTPUT
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WM8150 datasheet page 1 preview

DESCRIPTION

Internal multiplexers allow fast switching of offset and gain for line-by-line colour processing. The digital output data is available in 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, a digital core voltage of 5V, and a digital interface supply of either 5V or 3.3V, the WM8150 typically only consumes 160mW when operating from a single 5V supply. BLOCK DIAGRAM

FEATURES

● 12-bit ADC
● 8MSPS conversion rate
● Low power - 170mW typical
● 5V single supply or 5V/3.3V dual supply operation
● Single channel operation
● Correlated double sampling
● Programmable gain (8-bit resolution)
● Programmable offset adjust (8-bit resolution)
● Programmable...
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