GENERAL DESCRIPTION
The AD7398/AD7399 family of quad, 12-bit/10-bit, voltage output digital-to-analog converters is designed to operate from a single 3 V to 5 V or a dual ±5 V supply. Built with Analog’s robust CBCMOS process, this monolithic DAC offers the user low cost, and ease-of-use in single or dual-supply systems.
The applied external reference VREF determines the full-scale output voltage. Valid VREF values include VSS < VREF < VDD that result in a wide selection of full-scale outputs. For multiplying applications ac inputs can be as large as ±5 VP.

FEATURES
  AD7398—12-Bit Resolution
  AD7399—10-Bit Resolution
  Programmable Power Shutdown
  Single (3 V to 5 V) or Dual (±5 V) Supply Operation
  3-Wire Serial SPI-Compatible Interface
  Internal Power ON Reset
  Double Buffered Registers for Simultaneous
  Multichannel DAC Update
  Four Separate Rail-to-Rail Reference Inputs
  Thin Profile TSSOP-16 Package Available
  Low Tempco 1.5 ppm/°C

APPLICATIONS
  Automotive Output Voltage Span
  Portable Communications
  Digitally Controlled Calibration
  PC Peripherals