FPO

FPO 41%

Monolithic 12-Bit

DIGITAL-TO-ANALOG CONVERTERS

®

FEATURES

q INDUSTRY STANDARD PINOUT

q FULL

q DIGITAL INPUTS ARE TTL- AND

CMOS-COMPATIBLE

q GUARANTEED SPECIFICATIONS WITH

q

0

q SETTLING TIME: 4

Full Scale

q GUARANTEED MONOTONICITY:

0

q TWO PACKAGE OPTIONS: Hermetic side-

brazed ceramic and low-cost molded

plastic

DESCRIPTION

This monolithic digital-to-analog converter is pin-for-

pin equivalent to the industry standard DAC80 first

introduced by Burr-Brown. Its single-chip design in-

cludes the output amplifier and provides a highly

stable reference capable of supplying up to 2.5mA to

an external load without degradation of D/A perfor-

mance.

This converter uses proven circuit techniques to pro-

vide accurate and reliable performance over tempera-

ture and power supply variations. The use of a buried

zener diode as the basis for the internal reference

contributes to the high stability and low noise of the

device. Advanced methods of laser trimming result in

precision output current and output amplifier feedback

resistors, as well as low integral and differential lin-

earity errors. Innovative circuit design enables the

DAC80 to operate at supply voltages as low as

±11.4V

with no loss in performance or accuracy over any

range of output voltage. The lower power dissipation

of this 118-mil by 121-mil chip results in higher

reliability and greater long term stability.

Burr-Brown has further enhanced the reliability of the

monolithic DAC80 by offering a hermetic, side-brazed,

ceramic package. In addition, ease of use has been

enhanced by eliminating the need for a +5V logic

power supply.

For applications requiring both reliability and low

cost, the DAC80P in a molded plastic package offers

the same electrical performance over temperature as

the ceramic model. The DAC80P is available with

voltage output only.

For designs that require a wider temperature range, see

Burr-Brown models DAC85H and DAC87H.

DAC80

DAC80P

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

•

Cable: BBRCORP

•

Telex: 066-6491

•

FAX: (520) 889-1510

•

Immediate Product Info: (800) 548-6132

Reference

Control

Circuit

12-Bit

Resistor

Ladder

Network

and

Current

Switches

Reference

Gain

Adjustment

Scaling

Network

Analog

Output

Offset

Adjustment

+ Supply

– Supply

PDS-643F

Printed in U.S.A. July, 1993