REV. A

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a

AD7392/AD7393

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

+3 V, Parallel Input

Micropower 10- and 12-Bit DACs

FUNCTIONAL BLOCK DIAGRAM

12

12

12-BIT

DAC

DAC REGISTER

SHDN

AGND

RS

DB0–DB11

CS

DGND

AD7392

FEATURES

Micropower: 100

A

0.1

A Typical Power Shutdown

Single-Supply +2.7 V to +5.5 V Operation

Compact 1.1 mm Height TSSOP-20 Package

AD7392/12-Bit Resolution

AD7393/10-Bit Resolution

0.9 LSB Differential Nonlinearity Error

APPLICATIONS

Automotive 0.5 V to 4.5 V Output Span Voltage

Portable Communications

Digitally Controlled Calibration

PC Peripherals

GENERAL DESCRIPTION

The AD7392/AD7393 family of 10- and 12-bit voltage-output

digital-to-analog converters is designed to operate from a single

+3 V supply. Built using a CBCMOS process, these monolithic

DACs offer the user low cost and ease of use in single-supply

+3 V systems. Operation is guaranteed over the supply voltage

range of +2.7 V to +5.5 V, making this device ideal for battery

operated applications.

The full-scale voltage output is determined by the external

capable of sourcing 5 mA.

A 12-bit wide data latch loads with a 45 ns write time allowing

interface to the fastest processors without wait states.

Additionally, an asynchronous

RS input sets the output to zero

scale at power on or upon user demand.

Both parts are offered in the same pinout to allow users to select

the amount of resolution appropriate for their applications

without circuit card changes.

The AD7392/AD7393 are specified for operation over the ex-

tended industrial (–40

°C to +85°C) temperature range. The

AD7393AR is specified for the –40

°C to +125°C automotive

temperature range. AD7392/AD7393s are available in plastic

DIP, and 20-lead SOIC packages. The AD7393ARU is avail-

able for ultracompact applications in a thin 1.1 mm height

TSSOP-20 package.

For serial data input, 8-lead packaged versions, see the AD7390

and AD7391 products.

CODE – Decimal

1

1

0.4

0.2

0.4

0.6

0.8

0.2

0

0.8

0.6

0

4096

512

1024

1536

2048

2560

3072

3584

AD7392

Figure 1. AD7392 Differential Nonlinearity Error vs. Code

CODE – Decimal

1024

128

256

384

512

640

768

896

0

AD7393

1

1

0.4

0.2

0.4

0.6

0.8

0.2

0

0.8

0.6

Figure 2. AD7393 Differential Nonlinearity Error vs. Code