A

20k

Ω

20k

Ω

20k

Ω

20k

Ω

10k

Ω

10k

Ω

Logic

16

15

12

11

19

14

18

17

6

10

7

8

1

+V

Out

REF

Inv In

Inv Out

V

In

REF

BPO A

V

A

OUT

BPO B

V

B

OUT

+V

L

+V

S

–V

S

AGND

DGND

10V

Ref

DAC A

DAC B

DAC2814

3

A

1

A

2

Serial

Data

Out

5

Serial

Data and

Control In

DAC2814

FEATURES

q COMPLETE DUAL DAC —

INCLUDES INTERNAL REFERENCES AND

OUTPUT AMPLIFIERS

q GUARANTEED SPECIFICATIONS OVER

TEMPERATURE

q GUARANTEED MONOTONIC OVER

TEMPERATURE

DESCRIPTION

The DAC2814 is one in a family of dual and quad 12-

bit digital-to-analog converters. Serial, 8-bit, 12-bit

interfaces are available.

The DAC2814 is complete. It contains CMOS logic,

switches, a high-performance buried-zener reference,

and low-noise bipolar output amplifiers. No external

components are required for either unipolar 0 to 10V,

0 to –10V, or bipolar

±10V output ranges.

The DAC2814 has a high-speed serial interface

capable of being clocked at 10MHz. Serial data are

clocked DAC B MSB first into a 24-bit shift register,

then strobed into each DAC separately or simulta-

neously as required. The DAC has an asynchronous

clear control for reset to unipolar or bipolar zero

depending on the mode selected. This feature is useful

for power-on reset or system calibration. The DAC2814

is packaged in a 24-pin plastic DIP rated for the –40

°C

to +85

°C extended industrial temperature range.

High-stability laser-trimmed thin film resistors assure

high reliability and true 12-bit integral and differential

linearity over the full specified temperature range.

DUAL 12-BIT DIGITAL-TO-ANALOG

CONVERTER (Serial Interface)

q HIGH-SPEED SERIAL INTERFACE

(10MHz CLOCK)

q LOW POWER: 300mW (150mW/DAC)

q LOW GAIN DRIFT: 5ppm/

q LOW NONLINEARITY:

q UNIPOLAR OR BIPOLAR OUTPUT

q CLEAR/RESET TO UNIPOLAR OR

BIPOLAR ZERO

®

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

© 1991 Burr-Brown Corporation

PDS-1103B

Printed in U.S.A. October, 1993