FEATURES
LOW POWER: 150mW MAXIMUM
+10V INTERNAL REFERENCE
UNIPOLAR OR BIPOLAR OPERATION
SETTLING TIME: 5μs to ±0.003% FSR
16-BIT MONOTONICITY, –40°C TO +85°C
±10V, ±5V, OR +10V CONFIGURABLE VOLTAGE
OUTPUT
RESET TO ZERO OR MID-SCALE
DOUBLE-BUFFERED DATA INPUT
DAISY-CHAIN FEATURE FOR MULTIPLE
DAC7731s ON A SINGLE BUS
SMALL SSOP-24 PACKAGE

APPLICATIONS
PROCESS CONTROL
ATE PIN ELECTRONICS
CLOSED-LOOP SERVO CONTROL
MOTOR CONTROL
DATA ACQUISITION SYSTEMS

DESCRIPTION
The DAC7731 is a 16-bit Digital-to-Analog Converter (DAC)
which provides 16 bits of monotonic performance over the
specified operating temperature range and offers a +10V
internal reference. Designed for automatic test equipment
and industrial process control applications, the DAC7731
output swing can be configured in a ±10V, ±5V, or +10V
range. The flexibility of the output configuration allows the
DAC7731 to provide both unipolar and bipolar operation by
pin strapping. The DAC7731 includes a high-speed output
amplifier with a maximum settling time of 5μs to ±0.003%
FSR for a 20V full-scale change and only consumes 100mW
(typical) of power.
The DAC7731 features a standard 3-wire, SPI-compatible
serial interface with double buffering to allow asynchronous
updates of the analog output as well as a serial data output
line for daisy-chaining multiple DAC7731s. A user programmable
reset control forces the DAC output to either min-scale
(0000h) or mid-scale (8000h), overriding both the input and
DAC register values. The DAC7731 is available in a
SSOP-24 package and three performance grades specified
to operate from –40°C to +85°C.