General Description

The MAX1449 +3.3V, 10-bit analog-to-digital converter (ADC) features a fully differential input, a pipelined 10-stage ADC architecture with wideband track-and-hold (T/H), and digital error correction incorporating a fully differential signal path. The ADC is optimized for low power, high-dynamic performance in imaging and digital communications applications. The converter operates from a single +2.7V to +3.6V supply, consuming only 186mW while delivering a 58.5dB (typ) signal to-noise ratio (SNR) at a 20MHz input frequency. The fully differential input stage has a -3dB 400MHz band width and may be operated with single-ended inputs. In addition to low operating power, the MAX1449 features a 5µA power-down mode for idle periods.

Features

♦Single +3.3V Operation

♦Excellent Dynamic Performance

58.5dB SNR at fIN = 20MHz

72dBc SFDR at fIN = 20MHz

♦Low Power

62mA (Normal Operation)

5µA (Shutdown Mode)

♦Fully Differential Analog Input

♦Wide 2Vp-p Differential Input Voltage Range

♦400MHz -3dB Input Bandwidth

♦On-Chip +2.048V Precision Bandgap Reference

♦CMOS-Compatible Three-State Outputs

♦32-Pin TQFP Package

♦Evaluation Kit Available

Applications

Ultrasound Imaging

CCD Imaging

Baseband and IF Digitization

Digital Set-Top Boxes

Video Digitizing Applications