General Description

The MAX1438B octal, 12-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path. This ADC is optimized for low-power and high-dynamic performance in medical imaging instrumentation and digital communications applications. The MAX1438B operates from a 1.8V single supply and consumes only 913mW (114mW per channel) while delivering a 69.9dB (typ) signal-to-noise ratio (SNR) at a 5.3MHz input frequency. In addition to low operating power, the MAX1438B features a low power standby mode for idle periods.

Features

♦ Excellent Dynamic Performance

    69.9dB SNR at 5.3MHz

    94dBc SFDR at 5.3MHz

♦ Ultra-Low Power

    114mW per Channel (Normal Operation)

♦ Serial LVDS Outputs

♦ Pin-Selectable LVDS/SLVS (Scalable Low-Voltage Signal) Mode

♦ LVDS Outputs Support Up to 30in FR4 Backplane Connections

♦ Test Mode for Digital Signal Integrity

♦ Fully Differential Analog Inputs

♦ Wide Differential Input Voltage Range (1.4VP-P)

♦ On-Chip 1.24V Precision Bandgap Reference

♦ Clock Duty-Cycle Equalizer

♦ Compact, 68-Pin Thin QFN Package with Exposed Pad

♦ Evaluation Kit Available (Order MAX1437BEVKIT)

Applications

    Ultrasound and Medical Imaging

    Instrumentation

    Multichannel Communications