REV. D

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

DAC8412/DAC8413

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., 2000

Quad, 12-Bit DAC

Voltage Output with Readback

FUNCTIONAL BLOCK DIAGRAM

DGND

DATA

I/O

A0

A1

R/

W

CS

RESET

LDAC

12

I/O

PORT

CONTROL

LOGIC

INPUT

REG A

OUTPUT

REG A

DAC A

INPUT

REG B

INPUT

REG D

INPUT

REG C

OUTPUT

REG B

OUTPUT

REG C

OUTPUT

REG D

DAC B

DAC C

DAC D

FEATURES

+5 V to

15 V Operation

Unipolar or Bipolar Operation

True Voltage Output

Double-Buffered Inputs

Reset to Min (DAC8413) or Center Scale (DAC8412)

Fast Bus Access Time

Readback

APPLICATIONS

Automatic Test Equipment

Digitally Controlled Calibration

Servo Controls

Process Control Equipment

GENERAL DESCRIPTION

The DAC8412 and DAC8413 are quad, 12-bit voltage output

DACs with readback capability. Built using a complementary

BiCMOS process, these monolithic DACs offer the user very

high package density.

positive voltage, the DAC will provide a unipolar positive output

a negative voltage will provide a unipolar negative output range.

range has advantages over other bipolar offsetting methods because

it is not dependent on internal and external resistors with different

temperature coefficients.

Digital controls allow the user to load or read back data from any

DAC, load any DAC and transfer data to all DACs at one time.

An active low

RESET loads all DAC output registers to mid-

scale for the DAC8412 and zero scale for the DAC8413.

The DAC8412/DAC8413 are available in 28-lead plastic DIP,

PLCC and LCC packages. They can be operated from a wide

variety of supply and reference voltages with supplies ranging

from single +5 V to

±15 V, and references from +2.5 V to ±10 V.

Power dissipation is less than 330 mW with

±15 V supplies and

only 60 mW with a +5 V supply.

For MIL-STD-883 applications, contact your local ADI sales

office for the DAC8412/DAC8413/883 data sheet which specifies

operation over the –55

°C to +125°C temperature range. All

883 parts are also available on Standard Military Drawings

5962-91 76401MXA through 76404M3A.

DIGITAL INPUT CODE – Decimal

0.500

0.125

0

4096

512

1024

1536

2046

2548

2560

3072

0.375

–0.125

–0.250

–0.375

–0.500

0.250

0

+125 C

–55 C

+25 C

Figure 1. INL vs. Code Over Temperature