WM8255BGEFL/RV

Overview

The WM8255BGEFL/RV is a single-channel 16-bit analogue front-end and digitiser IC designed for CCD and CIS sensors. It processes signals at up to 12 MSPS, featuring Reset Level Clamping, Correlated Double Sampling, an 8-bit Programmable Gain Amplifier, and an 8-bit Offset DAC. The device operates on a 5.75V analogue supply (AVDD1) and a 3.3V digital supply (DVDD). It includes an RGB LED current drive with PWM control and outputs data in a 2-bit or 4-bit multiplexed format via a serial interface.

Feature Summary

• 16-bit ADC with 12 MSPS conversion rate
• Integrated signal processing: RLC, CDS, 8-bit PGA, and 8-bit Offset DAC
• RGB LED current drive with coarse/fine adjustment and PWM control
• 28-lead QFN package (4x4x0.85mm), MSL3

Applications

• Flatbed scanners
• Sheetfeed scanners
• USB compatible scanners
• Multi-function peripherals

Procurement Notes

Verify the suffix /RV indicates tape and reel packaging with a reel quantity of 3,500 units. Confirm the operating temperature range is 0°C to 85°C. Ensure the component is Pb-free and RoHS compliant as per the production data revision 4.7.

Selection Notes

Select this part for single-channel CIS/CCD applications requiring integrated LED driving. Ensure the system supports a 5.75V analogue supply and 3.3V digital I/O. Verify that the 12 MSPS maximum speed and 16-bit resolution meet the sensor requirements. Check compatibility with the 3-wire serial control interface.

Part Context

Manufactured by Wolfson Microelectronics plc (now Cirrus Logic Inc.), the WM8255 is part of the WM8255 family. The BGEFL/RV variant specifies the 4x4x0.85mm QFN package, tape and reel delivery, and commercial temperature range. It serves as an AFE for imaging sensors in office automation equipment.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements.