Burr Brown Products
from Texas Instruments
DAC7634
SBAS134A – JULY 2004 – REVISED AUGUST 2004
16-BIT, QUAD VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
FEATURES
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Low Power: 10 mW
Unipolar or Bipolar Operation
Settling Time: 10 µs to 0.003%
15-Bit Linearity and Monotonicity:
–40°C to 85°C
Programmable Reset to Mid-Scale
or Zero-Scale
Double-Buffered Data Inputs
DESCRIPTION
The DAC7634 is a 16-bit, quad voltage output, digital-
to-analog converter with specified 15-bit monotonic
performance over the specified temperature range. It
accepts 24-bit serial input data, has double-buffered
DAC input logic (allowing simultaneous update of all
DACs), and provides a serial data output for
daisy-chaining multiple DACs. Programmable asyn-
chronous reset clears all registers to a mid-scale
code of 8000
H
or to a zero-scale of 0000
H
. The
DAC7634 can operate from a single 5-V supply or
from 5-V and –5 V supplies.
Low power and small size per DAC make the
DAC7634 ideal for automatic test equipment,
DAC-per-pin programmers, data acquisition systems,
and closed-loop servo-control. The DAC7634 is avail-
able in a 48-lead SSOP package and offers specifi-
cations over the –40°C to 85°C temperature range.
V
REF
L
AB Sense
V
REF
H
AB Sense
APPLICATIONS
Process Control
Closed-Loop Servo-Control
Motor Control
Data Acquisition Systems
DAC-Per-Pin Programmers
V
DD
V
SS
V
CC
V
REF
L AB
V
REF
H AB
DAC7634
SDI
Shift
Register
SDO
Input
Register A
DAC
Register A
DAC A
V
OUT
A
V
OUT
A
Sense
Input
Register B
DAC
Register B
DAC B
V
OUT
B
V
OUT
B
Sense
CS
CLOCK
RST
RESTSEL
LDAC
LOAD
Control
Logic
Input
Register C
DAC
Register C
DAC C
V
OUT
C
V
OUT
C
Sense
Input
Register D
DAC
Register D
DAC D
V
OUT
D
V
OUT
D
Sense
AGND
DGND
V
REF
L
CD Sense
V
REF
L CD V
REF
H CD
V
REF
H
CD Sense
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated
BURR-BROWN [ BURR-BROWN CORPORATION ]
