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General Description

The MAX1181 is a 3V, dual 10-bit, analog-to-digital converter (ADC) featuring fully-differential wideband track-and-hold (T/H) inputs, driving two pipelined, nine stage ADCs. The MAX1181 is optimized for low-power, high-dynamic performance applications in imaging, instrumentation, and digital communication applications. The MAX1181 operates from a single 2.7V to 3.6V supply, consuming only 246mW, while delivering a typical signal-to-noise ratio (SNR) of 59dB at an input frequency of 20MHz and a sampling rate of 80Msps. 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 MAX1181 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

??? 59dB SNR at fIN = 20MHz

??? 73dB SFDR at fIN = 20MHz

? Low Power

??? 82mA (Normal Operation)

??? 2.8mA (Sleep Mode)

??? 1μA (Shutdown Mode)

? 0.02dB Gain and 0.25° Phase Matching (typ)

? 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 Pad for Improved Thermal Dissipation

? Evaluation Kit Available

Applications

??? High-Resolution Imaging

??? I/Q Channel Digitization

??? Multichannel IF Undersampling

??? Instrumentation

??? Video Application