Quad, 12-Bit, Serial Input,

Unipolar/Bipolar, Voltage Output DAC

AD5726

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

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

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

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

©2007 Analog Devices, Inc. All rights reserved.

FEATURES

+5 V to ±15 V operation

Unipolar or bipolar operation

±1 LSB maximum INL error, ±1 LSB maximum DNL error

Guaranteed monotonic over temperature

Double-buffered inputs

Simultaneous updating via LDAC

Asynchronous CLR to zero scale/midscale

Operating temperature range: −40°C to +125°C

iCMOS® process technology1

APPLICATIONS

Industrial automation

Closed-loop servo control, process control

Automotive test and measurement

Programmable logic controllers

GENERAL DESCRIPTION

The AD5726 is a quad, 12-bit, serial input, voltage output

digital-to analog converter that offers guaranteed monotonicity

and integral nonlinearity (INL) of ±1 LSB maximum.

negative voltage provides a unipolar negative output range.

ranges has advantages over the bipolar offsetting methods

because it is not dependent on internal and external resistors

with different temperature coefficients.

The AD5726 uses a serial interface that operates at clock rates up to

30 MHz and is compatible with DSP and microcontroller interface

standards. Double buffering allows simultaneous updating of all

DACs. The asynchronous CLR function clears all DAC registers

to a user-selectable, zero-scale or midscale output.

The AD5726 is available in 16-lead SSOP and 16-lead SOIC

packages. It can be operated from a wide variety of supply and

reference voltages with supplies ranging from single +5 V to

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

dissipation is less than 240 mW with ±15 V supplies and only

30 mW with a +5 V supply. Operation is specified over the

temperature range of −40°C to +125°C.

Table 1. Related Devices

Part No.

Description

AD5725

Quad, 12-bit, parallel input,

unipolar/bipolar, voltage output DAC.

AD5724R/AD5734R/

AD5754R

Complete, quad, 12-/14-/16-bit, serial

input, unipolar/bipolar voltage output

DAC with internal reference.

AD5722R/AD5732R/

AD5752R

Complete, dual, 12-/14-/16-bit, serial

input, unipolar/bipolar voltage output

DAC with internal reference.

FUNCTIONAL BLOCK DIAGRAM

DAC C

DAC D

DAC B

DAC A

GND

AD5726

12

12

12

12

12

12

12

12

CLRSEL

12

I/O

REGISTER

AND

CONTROL

LOGIC

SDIN

SCLK

CS

LDAC

CLR

INPUT

REG A

INPUT

REG B

INPUT

REG C

INPUT

REG D

DAC

REG A

DAC

REG B

DAC

REG C

DAC

REG D

Figure 1.

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.