Datasheet

1
®
DAC7744
16-Bit, Quad Voltage Output
DIGITAL-TO-ANALOG CONVERTER
®
DAC7744
DESCRIPTION
The DAC7744 is a 16-bit, quad voltage output digital-
to-analog converter with guaranteed 16-bit monotonic
performance over the specified temperature range. It
accepts 16-bit parallel input data, has double-buffered
DAC input logic (allowing simultaneous update of all
DACs), and provides a readback mode of the internal
input registers. Programmable asynchronous reset
clears all registers to a mid-scale code of 8000
H
or to
a zero-scale of 0000
H
. The DAC7744 operates from
either a single +15V supply or from a +15V, –15V,
and +5V supply.
Low power and small size per DAC make the DAC7744
ideal for automatic test equipment, DAC-per-pin pro-
grammers, data acquisition systems, and closed-loop
servo-control. The DAC7744 is available in a 48-
lead SSOP package, and offers guaranteed specifica-
tions over the –40°C to +85°C temperature range.
FEATURES
● LOW POWER: 200mW
● UNIPOLAR OR BIPOLAR OPERATION
● SINGLE-SUPPLY OUTPUT RANGE: +10V
● DUAL SUPPLY OUTPUT RANGE: ±10V
● SETTLING TIME: 10µs to 0.003%
● 16-BIT MONOTONICITY: –40°C to +85°C
● PROGRAMMABLE RESET TO MID-SCALE
OR ZERO-SCALE
● DATA READBACK
● DOUBLE-BUFFERED DATA INPUTS
APPLICATIONS
● PROCESS CONTROL
● ATE PIN ELECTRONICS
● CLOSED-LOOP SERVO-CONTROL
● MOTOR CONTROL
● DATA ACQUISITION SYSTEMS
● DAC-PER-PIN PROGRAMMERS
© 1999 Burr-Brown Corporation PDS-1534A Printed in U.S.A. November, 1999
DAC7744
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
For most current data sheet and other product
information, visit www.burr-brown.com
DAC A
DAC
Register A
Input
Register A
DAC7744
I/O
Buffer
Control
Logic
DAC B
DAC
Register B
Input
Register B
DAC C
DAC
Register C
Input
Register C
DAC D
DAC
Register D
Input
Register D
V
REF
L AB V
REF
H AB
V
REF
H
AB Sense
V
REF
L
AB Sense
V
OUT
D
V
OUT
C
V
OUT
B
V
OUT
A
V
OUT
B Sense
V
REF
L CD V
REF
H CD
RST LOADDACs
A1
A0
CS
R/W
DATA I/O
16
RSTSEL
AGND DGND
V
OUT
C Sense
V
OUT
D Sense
V
OUT
A Sense
V
CC
V
SS
V
DD
V
REF
L
CD Sense
V
REF
H
CD Sense
SBAS120