GENERAL DESCRIPTION
The AD7823 is a high speed, low power, 8-bit A/D converter that operates from a single 2.7 V to 5.5 V supply. The part contains a 4 µs typ successive approximation A/D converter, inherent track-and-hold functionality (with a pseudo differential input) and a high speed serial interface that interfaces to most microcontrollers. The AD7823 is fully specified over a temperature range of –40°C to +125°C.

FEATURES
   8-Bit ADC with 4 μs Conversion Time
   Small Footprint 8-Lead microSOIC Package
   Specified Over a –40°C to +125°C Temperature Range
   Inherent Track-and-Hold Functionality
   Operating Supply Range: 2.7 V to 5.5 V
   Specifications at 2.7 V to 5.5 V and 5 V ± 10%
   Microcontroller Compatible Serial Interface
   Optional Automatic Power-Down
   Low Power Operation:
      570 μW at 10 kSPS Throughput Rate
      2.9 mW at 50 kSPS Throughput Rate
   Analog Input Range: 0 V to VREF
   Reference Input Range: 0 V to VDD
   “Drop In” Upgrade to 10 Bits Available (AD7810)

APPLICATIONS
   Low Power, Hand-Held Portable Applications
      Requiring Analog-to-Digital Conversion
      with 8-Bit Accuracy, e.g.,
         Battery-Powered Test Equipment
         Battery-Powered Communications Systems