GENERAL DESCRIPTION

The AD7398/AD7399 family of quad, 12-bit/10-bit, voltage output digital-to-analog converters (DACs) is designed to operate from a single 3 V to 5 V supply or a dual ±5 V supply. Built with the Analog Devices, Inc. robust CBCMOS process, these monolithic DACs offer the user low cost with 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

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

Qualified for automotive applications

APPLICATIONS

Automotive output voltage span

Portable communications

Digitally controlled calibration

PC peripherals