GENERAL DESCRIPTION

The AD57811 is a single 18-bit, unbuffered voltage output digitalto-analog converter (DAC) that operates from a bipolar supply of up to 33 V. The AD5781 accepts a positive reference input range of 5 V to VDD − 2.5 V and a negative reference input range of VSS + 2.5 V to 0 V. The AD5781 offers a relative accuracy specification of ±0.5 LSB maximum, and operation is guaranteed monotonic with a ±0.5 LSB differential nonlinearity (DNL) maximum specification.

FEATURES

Single 18-bit DAC, ±0.5 LSB INL

7.5 nV/√Hz noise spectral density

0.05 LSB long-term linearity stability

<0.05 ppm/°C temperature drift

1 µs settling time

1.4 nV-sec glitch impulse

Operating temperature range: −40°C to +125°C

20-lead TSSOP package

Wide power supply range of up to ±16.5 V

35 MHz Schmitt triggered digital interface

1.8 V compatible digital interface

APPLICATIONS

Medical instrumentation

Test and measurement

Industrial control

Scientific and aerospace instrumentation

Data acquisition systems

Digital gain and offset adjustment

Power supply control