AD664BDBIP Analog Devices, AD664BDBIP Datasheet

AD664BDBIP

Manufacturer Part Number

AD664BDBIP

Description

CDIP28

Manufacturer

Analog Devices

Datasheet

1.5962-8871903MYA.pdf (20 pages)

Specifications of AD664BDBIP

Date_code

04+

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PRODUCT DESCRIPTION

The AD664 is four complete 12-bit, voltage-output DACs on

one monolithic IC chip. Each DAC has a double-buffered input

latch structure and a data readback function. All DAC read and

write operations occur through a single microprocessor-compatible

I/O port.

The I/O port accommodates 4-, 8- or 12-bit parallel words al-

lowing simple interfacing with a wide variety of microprocessors.

A reset to zero control pin is provided to allow a user to simulta-

neously reset all DAC outputs to zero, regardless of the contents

of the input latch. Any one or all of the DACs may be placed in

a transparent mode allowing immediate response by the outputs

to the input data.

The analog portion of the AD664 consists of four DAC cells,

four output amplifiers, a control amplifier and switches. Each

DAC cell is an inverting R-2R type. The output current from

each DAC is switched to the on-board application resistors and

output amplifier. The output range of each DAC cell is pro-

grammed through the digital I/O port and may be set to unipo-

lar or bipolar range, with a gain of one or two times the reference

voltage. All DACs are operated from a single external reference.

The functional completeness of the AD664 results from the

combination of Analog Devices’ BiMOS II process, laser-trimmed

thin-film resistors and double-level metal interconnects.

PRODUCT HIGHLIGHTS

1. The AD664 provides four voltage-output DACs on one chip

2. The output range of each DAC is fully and independently

3. Readback capability allows verification of contents of the in-

REV. C

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.

FEATURES

Four Complete Voltage Output DACs

Data Register Readback Feature

“Reset to Zero” Override

Multiplying Operation

Double-Buffered Latches

Surface Mount and DIP Packages

MIL-STD-883 Compliant Versions Available

APPLICATIONS

Automatic Test Equipment

Robotics

Process Control

Disk Drives

Instrumentation

Avionics

offering the highest density 12-bit D/A function available.

programmable.

ternal data registers.

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

Tel: 617/329-4700

4. The asynchronous RESET control returns all D/A outputs

5. DAC-to-DAC matching performance is specified and tested.

6. Linearity error is specified to be 1/2 LSB at room tempera-

7. DAC performance is guaranteed to be monotonic over the

8. Readback buffers have tristate outputs.

9. Multiplying-mode operation allows use with fixed or vari-

10. The AD664 is available in versions compliant with MIL-

to zero volts.

ture and 3/4 LSB maximum for the K, B and T grades.

full operating temperature range.

able, positive or negative external references.

STD-883. Refer to the Analog Devices Military Products

Databook or current AD664/883B data sheet for detailed

specifications.

PIN CONFIGURATIONS

28-Pin DIP Package

44-Pin Package

12-Bit Quad DAC

Monolithic

AD664

Fax: 617/326-8703

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