GENERAL DESCRIPTION

The AD5399 is the industry-first dual 12-bit digital-to-analog converter that accepts twos complement digital coding with 2 V dc offset for single-supply operation. Augmented with a built-in precision reference and a solid buffer amplifier, the AD5399 is the smallest self-contained 12-bit precision DAC that fits many general-purpose as well as DSP specific applications. The twos complement programming facilitates the natural coding implementation commonly found in DSP applications, and allows operation in single supply.

FEATURES

2-channel 12-bit DAC

Twos complement facilitates bipolar applications

Bipolar zero with 2 V dc offset

Built-in 2.000 V precision reference with 10 ppm/°C typ TC

Buffered voltage output: 0 V to 4 V

Single-supply operation: 4.5 V to 5.5 V

Fast 0.8 µs settling time typ

Ultracompact MSOP-10 package

Monotonic DNL < ±1 LSB

Optimized accuracy at zero scale

Power-on reset to VREF

3-wire serial data input

Extended temperature range: –40°C to +105°C

APPLICATIONS

Single-supply bipolar converter operations

General-purpose DSP applications

Digital gain and offset controls

Instrumentation level settings

Disk drive control

Precision motor control