General Description

The MAX1421 is a 3.3V, 12-bit analog-to-digital converter (ADC), featuring a fully-differential input, pipelined, 12-stage ADC architecture with wideband track-and-hold (T/H) and digital error correction incorporating a fully-differential signal path. The MAX1421 is optimized for low-power, high-dynamic performance applications in imaging and digital communications.

Features

♦ Single 3.3V Power Supply

♦ 67dB SNR at fIN = 5MHz

♦ 66dB SNR at fIN = 15MHz

♦ Internal, 2.048V Precision Bandgap Reference

♦ Differential, Wideband Input T/H Amplifier

♦ Power-Down Modes

180mW (Reference Shutdown Mode)

10µW (Shutdown Mode)

♦ Space-Saving 48-Pin TQFP Package

Applications

Medical Ultrasound Imaging

CCD Pixel Processing

Data Acquisition

Radar

IF and Baseband Digitization