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WM8259 - Single Channel 16-Bit CIS/CCD AFE

Datasheet Summary

Description

The WM8259 is a 16-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 3MSPS.

Features

  • 16-bit ADC.
  • 3MSPS conversion rate.
  • Low power - 132mW typical.
  • 3.3V single supply or 3.3V/2.5V dual supply operation.
  • Single channel operation, selectable inputs.
  • Correlated double sampling.
  • Programmable gain (8-bit resolution).
  • Programmable offset adjust (8-bit resolution).
  • Programmable clamp voltage.
  • 4-bit wide multiplexed data output format.
  • Internally generated voltage references.
  • 20-l.

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Datasheet preview – WM8259

Datasheet Details

Part number WM8259
Manufacturer Wolfson
File Size 327.03 KB
Description Single Channel 16-Bit CIS/CCD AFE
Datasheet download datasheet WM8259 Datasheet
Additional preview pages of the WM8259 datasheet.

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Full PDF Text Transcription

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w WM8259 Single Channel 16-bit CIS/CCD AFE with 4-bit Wide Output DESCRIPTION The WM8259 is a 16-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 3MSPS. The device has two selectable video input pins and one complete analogue signal processing channel containing Reset Level Clamping, Correlated Double Sampling, Programmable Gain and Offset adjust functions. Internal multiplexers allow fast switching of offset and gain for lineby-line colour processing. The output from this channel is time multiplexed into a high-speed 16-bit Analogue to Digital Converter. The digital output data is available in 4-bit wide multiplexed format.
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