FEATURES

16-BIT MONOTONICITY GUARANTEED

OVER –40°C TO +85°C

LOW POWER: 1.2mW

VOLTAGE OUTPUT

SETTLING TIME: 2ms to 0.012%

MAX LINEARITY ERROR: 30ppm

ON-CHIP CALIBRATION

APPLICATIONS

PROCESS CONTROL

ATE PIN ELECTRONICS

CLOSED-LOOP SERVO-CONTROL

SMART TRANSMITTERS

PORTABLE INSTRUMENTS

VCO CONTROL

DESCRIPTION

The DAC1221 is a Digital-to-Analog (D/A) converter

offering 16-bit monotonic performance over the specified

temperature range. It utilizes delta-sigma technology

to achieve inherently linear performance in a

small package at very low power. The output range is

two times the external reference voltage. On-chip

calibration circuitry dramatically reduces offset and

gain errors.

The DAC1221 features a synchronous serial interface.

In single converter applications, the serial interface can

be accomplished with just two wires, allowing lowcost

isolation. For multiple converters, a CS signal

allows for selection of the appropriate D/A converter.

The DAC1221 has been designed for closed-loop

control applications in the industrial process control

market, and high resolution applications in the test and

measurement market. It is also ideal for remote applications,

battery-powered instruments, and isolated systems.

The DAC1221 is available in a SSOP-16 package.