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

q LOW POWER: 200mW

q UNIPOLAR OR BIPOLAR OPERATION

q SINGLE-SUPPLY OUTPUT RANGE: +10V

q DUAL SUPPLY OUTPUT RANGE:

±10V

q SETTLING TIME: 10

µs to 0.003%

q 16-BIT MONOTONICITY: –40

°C to +85°C

q PROGRAMMABLE RESET TO MID-SCALE

OR ZERO-SCALE

q DATA READBACK

q DOUBLE-BUFFERED DATA INPUTS

APPLICATIONS

q PROCESS CONTROL

q ATE PIN ELECTRONICS

q CLOSED-LOOP SERVO-CONTROL

q MOTOR CONTROL

q DATA ACQUISITION SYSTEMS

q 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: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

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

VREFL AB VREFH AB

VREFH

AB Sense

VREFL

AB Sense

VOUTD

VOUTC

VOUTB

VOUTA

VOUTB Sense

VREFL CD VREFH CD

RST

LOADDACs

A1

A0

CS

R/W

DATA I/O

16

RSTSEL

AGND

DGND

VOUTC Sense

VOUTD Sense

VOUTA Sense

VCC

VSS

VDD

VREFL

CD Sense

VREFH

CD Sense

SBAS120