General Description

The MAX1425 10-bit, monolithic analog-to-digital converter (ADC) is capable of a 20Msps sampling rate. This device features an internal track-and-hold (T/H) amplifier for excellent dynamic performance; at the same time, it minimizes the number of external components. Low input capacitance of only 8pF minimizes input drive requirements. A wide input bandwidth (up to 150MHz) makes this device suitable for digital RF/IF downconverter applications employing undersampling techniques.

Features

♦ Differential Inputs for High Common-Mode Noise Rejection

♦ Signal-to-Noise Ratio 61dB (at fIN = 2MHz) 59.3dB (at fIN = 10MHz)

♦ Internal +2.5V Reference

♦ 150MHz Input Bandwidth

♦ Wide ±2V Input Range

♦ Low Power Consumption: 172mW

♦ Separate Digital Supply Input for 3V Logic Compatibility

♦ Single +5V Supply Operation Possible

Applications

Medical Ultrasound Imaging

CCD Pixel Processing

IR Focal Plane Array

Radar

IF and Baseband Digitization

Set-Top Boxes