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General Description

The MAX1183 is a 3V, dual 10-bit analog-to-digital converter (ADC) featuring fully differential wideband trackand-hold (T/H) inputs, driving two pipelined, nine-stage ADCs. The MAX1183 is optimized for low-power, high dynamic performance applications in imaging, instrumentation, and digital communication applications. This ADC operates from a single 2.7V to 3.6V supply, consuming only 120mW while delivering a typical signal-to-noise ratio (SNR) of 59.6dB at an input frequency of 20MHz and a sampling rate of 40Msps. The T/H driven input stages incorporate 400MHz (-3dB) input amplifiers. The converters may also be operated with single-ended inputs. In addition to low operating power, the MAX1183 features a 2.8mA sleep mode as well as a 1μA power-down mode to conserve power during idle periods.

Features

? Single 3V Operation

? Excellent Dynamic Performance:

??? 59.6dB SNR at fIN = 20MHz

??? 73dB SFDR at fIN = 20MHz

? Low Power:

??? 40mA (Normal Operation)

??? 2.8mA (Sleep Mode)

??? 1μA (Shutdown Mode)

? 0.02dB Gain and 0.25° Phase Matching

? Wide ±1VP-P Differential Analog Input Voltage Range

? 400MHz -3dB Input Bandwidth

? On-Chip 2.048V Precision Bandgap Reference

? User-Selectable Output Format—Two’s Complement or Offset Binary

? 48-Pin TQFP Package with Exposed Paddle for Improved Thermal Dissipation

Applications

??? High-Resolution Imaging

??? I/Q Channel Digitization

??? Multichannel IF Sampling

??? Instrumentation

??? Video Application

??? Ultrasound