DAC2815

A

20k

Ω

20k

Ω

20k

Ω

20k

Ω

10k

Ω

10k

Ω

Logic

17

18

14

13

20

16

19

15

10

12

8

11

28

+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

DAC2815

3

A

1

A

2

8-Bit

Port and

Control In

FEATURES

q COMPLETE DUAL DAC —

INCLUDES INTERNAL REFERENCES AND

OUTPUT AMPLIFIERS

q GUARANTEED SPECIFICATIONS OVER

TEMPERATURE

q GUARANTEED MONOTONIC OVER

TEMPERATURE

DESCRIPTION

The DAC2815 is one in a family of dual and quad 12-

bit digital-to-analog converters (DACs). Serial, 8-bit,

12-bit interfaces are available.

The DAC2815 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 DAC2815 has a 2-byte (8 + 4) double-buffered

interface. Data is first loaded (level transferred) into

the input registers in two steps for each DAC. Then

both DACs are updated simultaneously. 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 calibra-

tion. The DAC2815 is packaged in a 28-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 (8-Bit Port Interface)

q HIGH-SPEED 8 + 4-BIT PARALLEL

INTERFACE

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-1110B

Printed in U.S.A. October, 1993