General Description

The MAX1420, 3.3V, 12-bit analog-to-digital converter (ADC) features a fully-differential input, pipelined, 12- stage ADC architecture with wideband track-and-hold (T/H) and digital error correction, incorporating a fullydifferential signal path. The MAX1420 is optimized for low-power, high dynamic performance applications in imaging and digital communications. The converter operates from a single 3.3V supply, and consumes only 221mW. The fully-differential input stage has a small signal -3dB bandwidth of 400MHz and may be operated with single-ended inputs.

Features

♦ 3.3V Single 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

218mW (Reference Shutdown Mode)

10µW (Shutdown Mode)

♦ Space-Saving 48-Pin TQFP Package

Applications

Medical Ultrasound Imaging

CCD Pixel Processing

IR Focal Plane Arrays

Radar

IF and Baseband Digitization