DAC7741 Datasheet, PDF (1/20 Pages) Burr-Brown (TI) – 16-Bit, Single Channel DIGITAL-TO-ANALOG CONVERTER With Internal Reference and Parallel Interface

DAC7741
DAC7741
SBAS248A – DECEMBER 2001 – REVISED JULY 2003
16-Bit, Single Channel
DIGITAL-TO-ANALOG CONVERTER
With Internal Reference and Parallel Interface
FEATURES
q LOW POWER: 150mW MAXIMUM
q +10V INTERNAL REFERENCE
q UNIPOLAR OR BIPOLAR OPERATION
q SETTLING TIME: 5µs to ±0.003% FSR
q 16-BIT MONOTONICITY, –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
APPLICATIONS
q PROCESS CONTROL
q ATE PIN ELECTRONICS
q CLOSED-LOOP SERVO CONTROL
q MOTOR CONTROL
q DATA ACQUISITION SYSTEMS
DESCRIPTION
The DAC7741 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,
low-drift internal reference. Designed for automatic test equip-
ment and industrial process control applications, the DAC7741
output swing can be configured in a ±10V, ±5V, or +10V
range. The flexibility of the output configuration allows the
DAC7741 to provide both unipolar and bipolar operation by
pin strapping. The DAC7741 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 DAC7741 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 (0000_H) or mid-scale
(8000_H) overriding the DAC register values. The DAC7741 is
available in a LQFP-48 package and four performance grades
specified to operate from 0°C to +70°C and –40°C to +85°C.
V_DD V_SS V_CC
REFADJ ^REFOUT ^REFIN
V_REF
REFEN
CS
R/W
RST
RSTSEL
+10V
Reference
Control
Logic
Buffer
R_OFFSET
RFB2
RFB1
Data I/O
16
I/O
Buffer
Input
Register
DAC
Register
DAC
SJ
V_OUT
AGND DGND
LDAC
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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