FEATURES
LOW POWER: 150mW Maximum
q
+10V INTERNAL REFERENCE
q
UNIPOLAR OR BIPOLAR OPERATION
q
SETTLING TIME: 5
µ
s to
±
0.003% FSR
q
16-BIT MONOTINICITY, –40
°
C TO +85
°
C
q
±
10V,
±
5V OR +10V CONFIGURABLE VOLTAGE
OUTPUT
q
RESET TO MIN-SCALE OR MID-SCALE
q
DOUBLE-BUFFERED DATA INPUT
q
INPUT REGISTER DATA READBACK
q
SMALL LQFP-48 PACKAGE
q
SUPPORTS TRANSPARENT DATA INPUT
OPERATION
DESCRIPTION
The DAC7742 is a 16-bit Digital-to-Analog Converter (DAC)
that provides 16 bits of monotonic performance over the
specified operating temperature range and offers a +10V,
low-drift internal reference. Designed for automatic test equip-
ment and industrial process control applications, the DAC7742
output swing can be configured in a
±10V, ±5V,
or +10V
range. The flexibility of the output configuration allows the
DAC7742 to provide both unipolar and bipolar operation by
pin strapping. The DAC7742 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 DAC7742 features a standard 16-bit parallel interface with
double buffering to allow asynchronous updates of the analog
output, and data read-back to support data integrity verification
prior to an update. A user-programmable reset control allows
the DAC output to reset to min-scale (FFFF
H
) or mid-scale
(7FFF
H
) overriding the DAC register values. The DAC7742 is
available in an LQFP-48 package and three performance
grades specified to operate from –40°C to +85°C.
