GENERAL DESCRIPTION
The AD7303 is a dual, 8-bit voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. This device uses a versatile 3-wire serial interface that operates at clock rates up to 30 MHz, and is compatible with QSPI, SPI, microwire and digital signal processor interface standards. The serial input register is sixteen bits wide; 8 bits act as data bits for the DACs, and the remaining eight bits make up a control register.

FEATURES
   Two 8-Bit DACs in One Package
   8-Pin DIP/SOIC and microSOIC Packages
   +2.7 V to +5.5 V Operation
   Internal & External Reference Capability
   Individual DAC Power-Down Function
   Three-Wire Serial Interface
      QSPI™, SPI™ and Microwire™ Compatible
   On-Chip Output Buffer
      Rail-to-Rail Operation
   On-Chip Control Register
   Low Power Operation: 2.3 mA @ 3.3 V
   Full Power-Down to 1 mA max, typically 80 nA
  
APPLICATIONS
   Portable Battery Powered Instruments
   Digital Gain and Offset Adjustment
   Programmable Voltage and Current Sources
   Programmable Attenuators