AD5744R datasheet, PDF - EEWORLD Datasheet

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AD5744R: Descriptioncomplete quad, 14-bit, high accuracy, serial input, bipolar voltage output dac; Categorysemiconductor Discrete semiconductor; File Size508KB，32 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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AD5744R Overview

complete quad, 14-bit, high accuracy, serial input, bipolar voltage output dac

User Manual

【User Guides】UG-630: Evaluating the iCoupler ADuM1440ARQZ/ADuM1441ARQZ/ ADuM1442ARQZ/ADuM1445ARQZ/ADuM1446ARQZ/ADuM1447ARQZ with the

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Preliminary Technical Data

FEATURES

Complete quad, 14-bit digital-to-analog

converter (DAC)

Programmable output range: ±10 V, ±10.2564 V,

or ±10.5263 V

±1 LSB max INL error, ±1 LSB max DNL error

Low noise: 60 nV/√Hz

Settling time: 10 μs max

Integrated reference buffers

Internal reference: 10 ppm/°C

On-chip die temperature sensor

Output control during power-up/brownout

Programmable short-circuit protection

Simultaneous updating via LDAC

Asynchronous CLR to zero code

Digital offset and gain adjust

Logic output control pins

DSP-/microcontroller-compatible serial interface

Temperature range: −40°C to +85°C

iCMOS™

process technology

Complete Quad, 14-Bit, High Accuracy,

Serial Input, Bipolar Voltage Output DAC

AD5744R

GENERAL DESCRIPTION

The AD5744R is a quad, 14-bit, serial input, bipolar voltage

output digital-to-analog converter that operates from supply

voltages of ±11.4 V up to ±16.5 V. Nominal full-scale output

range is ±10 V. The AD5744R provides integrated output

amplifiers, reference buffers and proprietary power-up/power-

down control circuitry. The parts also feature a digital I/O port,

which is programmed via the serial interface and an analog

temperature sensor. The part incorporates digital offset and

gain adjust registers per channel.

The AD5744R is a high performance converter that offers

guaranteed monotonicity, integral nonlinearity (INL) of ±1 LSB,

low noise, and 10 μs settling time. The AD5744R includes an

on-chip 5 V reference with a reference tempco of 10 ppm/°C

maximum. During power-up (when the supply voltages are

changing), VOUT is clamped to 0 V via a low impedance path.

The AD5744R uses a serial interface that operates at clock rates

of up to 30 MHz and is compatible with DSP and

microcontroller interface standards. Double buffering allows

the simultaneous updating of all DACs. The input coding is

programmable to either twos complement or offset binary

formats. The asynchronous clear function clears all DAC

registers to either bipolar zero or zero scale depending on the

coding used. The AD5744R is ideal for both closed-loop servo

control and open-loop control applications. The AD5744R is

available in a 32-lead TQFP, and offers guaranteed

specifications over the −40°C to +85°C industrial temperature

range. See Figure 1, the functional block diagram.

APPLICATIONS

Industrial automation

Open-/closed-loop servo control

Process control

Data acquisition systems

Automatic test equipment

Automotive test and measurement

High accuracy instrumentation

For analog systems designers within industrial/instrumentation equipment

OEMs who need high performance ICs at higher voltage levels,

iCMOS

is a

technology platform that enables the development of analog ICs capable of

30 V and operating at ±15 V supplies while allowing dramatic reductions in

power consumption and package size, and increased ac and dc

performance.

Rev. PrA

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.

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

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

AD5744R

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Functional Block Diagram .............................................................. 3

Specifications..................................................................................... 4

AC Performance Characteristic...................................................... 6

Timing Characteristics..................................................................... 7

Absolute Maximum Ratings.......................................................... 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions........................... 11

Terminology .................................................................................... 13

Typical Performance Characteristics ........................................... 15

Theory of Operation ...................................................................... 20

DAC Architecture....................................................................... 20

Reference Buffers........................................................................ 20

Serial Interface ............................................................................ 20

Simultaneous Updating via LDAC ........................................... 21

Transfer Function ....................................................................... 22

Preliminary Technical Data

Asynchronous Clear (CLR)....................................................... 22

Function Register ....................................................................... 23

Data Register............................................................................... 24

Coarse Gain Register ................................................................. 24

Fine Gain Register...................................................................... 24

AD5744R Features.......................................................................... 25

Analog Output Control ............................................................. 25

Programmable Short-Circuit Protection ................................ 25

Digital I/O Port........................................................................... 25

die Temperature Sensor............................................................. 25

Local Ground Offset Adjust...................................................... 25

Applications Information .............................................................. 26

Typical Operating Circuit ......................................................... 26

Layout Guidelines........................................................................... 27

Galvanically Isolated Interface ................................................. 27

Microprocessor Interfacing....................................................... 27

Outline Dimensions ....................................................................... 30

Ordering Guide .......................................................................... 30

REVISION HISTORY

4/06—Revision PrA: Preliminary Version

Removed AD5744, AD5764, and AD5764R...................Universal

Changes to Ordering Guide ............................................................ 2

Rev. PrA | Page 2 of 32

AD5744R Related Products

	AD5744R	AD5744RBSUZ
Description	complete quad, 14-bit, high accuracy, serial input, bipolar voltage output dac	complete quad, 14-bit, high accuracy, serial input, bipolar voltage output dac

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