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 can operate from a single 3 V ± 10% and 5 V ± 10% supply.

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