AD7829-1

3 V/5 V, 2 MSPS, 8-Bit, 8-Channel ADC AD7829-1 FEATURES 8-bit half-flash ADC with 420 ns conversion time Eight single-ended analog input channels Available with input offset adjust On-chip track-and-hold SNR performance given for input frequencies up to10 MHz On-chip reference (2.5 V) Automatic power-down at the end of conversion Wide operating supply range 3 V ± 10% and 5 V ± 10% Input ranges 0 V to 2 V p-p, VDD = 3 V ± 10% 0 V to 2.5 V p-p, VDD = 5 V ± 10% Flexible parallel interface with EOC pulse to allow stand-alone operation APPLICATIONS Data acquisition systems, DSP front ends Disk drives Mobile communication systems, subsampling applications GENERAL DESCRIPTION The AD7829-1 is a high speed 8-channel, microprocessorcompatible, 8-bit analog-to-digital converter with a maximum throughput of 2 MSPS. The AD7829-1 contains an on-chip reference of 2.5 V (2% tolerance); a track-and-hold amplifier; a 420 ns, 8-bit half-flash ADC; and a high speed parallel interface. The converter c...