REV. 0

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a

DAC8043A

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 1999

12-Bit Serial Input

Multiplying D/A Converter

FUNCTIONAL BLOCK DIAGRAM

12-BIT SHIFT

REGISTER

DAC REG

12

12

DAC

DAC8043A

LD

CLK

SRI

GND

FEATURES

Compact SO-8 and TSSOP Packages

True 12-Bit Accuracy

+5 V Operation @ <10

A

Fast 3-Wire Serial Input

Fast 1

s Settling Time

2.4 MHz 4-Quadrant Multiply BW

Pin-for-Pin Upgrade for DAC8043

Standard and Rotated Pinout

APPLICATIONS

Ideal for PLC Applications in Industrial Control

Programmable Amplifiers and Attenuators

Digitally Controlled Calibration and Filters

Motion Control Systems

GENERAL DESCRIPTION

The DAC8043A is an improved high accuracy 12-bit multiply-

ing digital-to-analog converter in space-saving 8-lead packages.

Featuring serial input, double buffering and excellent analog

performance, the DAC8043A is ideal for applications where PC

board space is at a premium. Improved linearity and gain error

performance permit reduced parts count through the elimina-

tion of trimming components. Separate input clock and load

DAC control lines allow full user control of data loading and

analog output.

The circuit consists of a 12-bit serial-in/parallel-out shift regis-

ter, a 12-bit DAC register, a 12-bit CMOS DAC and control

logic. Serial data is clocked into the input register on the rising

edge of the CLOCK pulse. When the new data word has been

clocked in, it is loaded into the DAC register with the

LD input

pin. Data in the DAC register is converted to an output current

by the D/A converter.

Consuming only 10

µA from a single +5 V power supply, the

DAC8043A is the ideal low power, small size, high performance

solution to many application problems.

The DAC8043A is specified over the extended industrial

(–40

°C to +85°C) temperature range. DAC8043A is available

in plastic DIP, and the low profile 1.75 mm height SO-8 surface

mount packages. The DAC8043AFRU is available for ultra-

compact applications in a thin 1.1 mm TSSOP-8 package.

CODE

0.1

0

–0.1

0

1024

2048

3072

4096

–0.5

0.5

0.4

0.3

0.2

–0.2

–0.3

–0.4

512

1536

2560

3584

Figure 1. Integral Nonlinearity Error vs. Code