ad7393 Analog Devices, Inc., ad7393 Datasheet

ad7393

Manufacturer Part Number

ad7393

Description

3 V, Parallel Input Micropower 10-/12-bit Dacs

Manufacturer

Analog Devices, Inc.

Datasheet

1.AD7393.pdf (20 pages)

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FEATURES

Micropower: 100 μA

0.1 μA typical power shutdown

Single-supply 2.7 V to 5.5 V operation

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 comprise a set of pin-compatible

10-/12-bit voltage output, digital-to-analog converters. The

parts are designed to operate from a single 3 V supply. Built

using a CBCMOS process, these monolithic DACs offer 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 ref-

erence input voltage applied. The rail-to-rail REF

allows a full-scale voltage equal to the positive supply V

any value in between. The voltage outputs are capable of sourc-

ing 5 mA.

A data latch load of 12 bits with a 45 ns write time eliminates

wait states when interfacing to the fastest processors. Addition-

ally, an asynchronous RS input sets the output to a zero scale at

power-on or upon user demand.

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 that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

to DAC

OUT

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

Tel: 781.329.4700

Fax: 781.461.3113

Both parts are offered with similar pinouts, which allows users

to select the amount of resolution appropriate for their applica-

tions without changing the circuit card.

The AD7392/AD7393 are specified for operation over the

extended industrial temperature range of −40°C to +85°C.

The AD7393AR is specified for the automotive temperature

range of −40°C to +125°C. The AD7392/AD7393 are available

in 20-lead PDIP and 20-lead SOIC packages.

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

and AD7391.

Micropower 10-/12-Bit DACs

REF

FUNCTIONAL BLOCK DIAGRAM

DGND

AD7392

DAC REGISTER

3 V, Parallel Input

D0 TO D11

12-BIT

DAC

Figure 1.

AD7392/AD7393

www.analog.com

SHDN

AGND

OUT

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