WM8255
Description
The WM8255 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 12 MSPS. The device includes a plete signal processing channel containing Reset Level Clamping, Correlated Double Sampling, Programmable Gain and Offset adjust functions.
Key Features
- 12 MSPS conversion rate
- Low power – 250 mW typical
- 5.75V and 3.3V supply operation
- Single channel operation
- Correlated double sampling
- Programmable gain (8-bit resolution)
- Programmable offset adjust (8-bit resolution)
- Programmable clamp voltage
- RGB LED current drive using current and PWM
- 2-bit or 4-bit wide multiplexed data output format
