Low Cost 12-Bit CMOS

Four-Quadrant Multiplying

DIGITAL-TO-ANALOG CONVERTER

FEATURES

q FULL FOUR-QUADRANT

MULTIPLICATION

q 12-BIT END-POINT LINEARITY

q DIFFERENTIAL LINEARITY

OVER TEMPERATURE

q MONOTONICITY GUARANTEED OVER

TEMPERATURE

q TTL-/CMOS-COMPATIBLE

q SINGLE +5V TO +15V SUPPLY

q LATCH-UP RESISTANT

q 7521/7541/7541A REPLACEMENT

q PACKAGES: Plastic DIP, Plastic SOIC

q LOW COST

DESCRIPTION

The Burr-Brown DAC7541A is a low cost 12-bit,

four-quadrant multiplying digital-to-analog converter.

Laser-trimmed thin-film resistors on a monolithic

CMOS circuit provide true 12-bit integral and differ-

ential linearity over the full specified temperature

range.

DAC7541A is a direct, improved pin-for-pin replace-

ment for 7521, 7541, and 7541A industry standard

parts. In addition to a standard 18-pin plastic package,

the DAC7541A is also available in a surface-mount

plastic 18-pin SOIC.

10k

Ω

10k

Ω

20k

Ω

20k

Ω

10k

Ω

20k

Ω

10k

Ω

20k

Ω

10k

Ω

20k

Ω

I

OUT 2

Bit 11

Bit 3

Bit 2

Bit 1

(MSB)

V

REF

Bit 12

(LSB)

20k

Ω

I

OUT 1

R

FB

SPDT NMOS

Switches

Digital Inputs (DTL-/TTL-/CMOS-compatible)

Logic: A switch is closed to I

Switches shown for digital inputs “HIGH”.

DAC7541A

®

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

PDS-639C

Printed in U.S.A. September, 1993

SBAS147