DESCRIPTION

The WM2331 is a high speed, 10-bit pipeline analogue-to-digital converter (ADC) with on-chip programmable gain amplifier (PGA) and clamp circuit, and internal voltage references. Conversion is controlled by a single clock input.

The device has a high bandwidth differential sample and hold input, which gives excellent common-mode noise immunity and low distortion. Alternatively, it can be driven in single ended fashion with an optional voltage clamp for DC restoration that can take its reference from an on-chip 10-bit DAC or an external source.

FEATURES

• 10-bit resolution ADC

• 30MSPS conversion rate

• Programmable Gain Amplifier (PGA)

• Built in clamp function (DC restore) with 10-bit DAC

• Adjustable internal voltage references

• Wide Input Bandwidth - 150MHz

• Unsigned Binary or Two’s complement output format

• Programmable via parallel interface

• Independent analogue and digital supplies, 3V to 5.5V

• Low power - 92mW typical at 3.0V supplies

• Powerdown mode to 3mW typical

• 28-pin TSSOP package

APPLICATIONS

• Composite Video Digitisation

• Digital Copiers

• Digital Video Cameras

• Set Top Box (STB)

• IF and Baseband Digitisation

• Medical Imaging

• High Speed Data Acquisition