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.