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DAC7634
SBAS134A–JULY 2004–REVISED AUGUST 2004
16-BIT, QUAD VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
FEATURES
DESCRIPTION
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Low Power: 10 mW
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
Unipolar or Bipolar Operation
Settling Time: 10 µs to 0.003%
15-Bit Linearity and Monotonicity:
–40°C to 85°C
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 8000H or to a zero-scale of 0000H. The
DAC7634 can operate from a single 5-V supply or
from 5-V and –5 V supplies.
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Programmable Reset to Mid-Scale
or Zero-Scale
Double-Buffered Data Inputs
APPLICATIONS
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.
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Process Control
Closed-Loop Servo-Control
Motor Control
Data Acquisition Systems
DAC-Per-Pin Programmers
VREF
L
VREFH
VREFL AB VREFH AB
AB Sense
AB Sense
VDD
VSS
VCC
DAC7634
SDI
Input
Register
DAC
Register
DAC A
A
B
A
B
Shift
Register
VOUTA
SDO
VOUTA Sense
Input
Register
DAC
Register
DAC B
DAC C
DAC D
VOUTB
VOUTB Sense
Input
Register
DAC
Register
CS
C
D
C
D
VOUTC
CLOCK
RST
RESTSEL
LDAC
Control
Logic
VOUTC Sense
DAC
Register
Input
Register
VOUTD
LOAD
VOUTD Sense
L
VREFL CD VREFH CD
H
VREF
VREF
AGND
DGND
CD Sense
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
BB [ BURR-BROWN CORPORATION ]
