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Analog Devices Semiconductor Electronic Components Datasheet

AD5725 Datasheet

Voltage Output DAC

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AD5725 pdf
Data Sheet
Quad, 12-Bit, Parallel Input,
Unipolar/Bipolar, Voltage Output DAC
AD5725
FEATURES
+5 V to ±15 V operation
Unipolar or bipolar operation
±0.5 LSB max INL error, ±1 LSB max DNL error
Settling time: 10 µs max (10 V step)
Double-buffered inputs
Simultaneous updating via LDAC
Asynchronous CLR to zero/mid scale
Readback
Operating temperature range: −40°C to +85°C
iCMOS® process technology
APPLICATIONS
Industrial automation
Closed-loop servo control, process control
Automotive test and measurement
Programmable logic controllers
GENERAL DESCRIPTION
The AD5725 is a quad, 12-bit, parallel input, voltage output
digital-to-analog converter that offers guaranteed monotonicity,
integral nonlinearity (INL) of ±0.5 LSB maximum and 10 µs
maximum settling time.
Output voltage swing is set by two reference inputs, VREFP and
VREFN. By setting the VREFN input to 0 V and the VREFP to a
positive voltage, the DAC provides a unipolar positive output
range. A similar configuration with VREFP at 0 V and VREFN at a
negative voltage provides a unipolar negative output range.
Bipolar outputs are configured by connecting both VREFP and
VREFN to nonzero voltages. This method of setting output voltage
ranges has advantages over the bipolar offsetting methods
because it is not dependent on internal and external resistors
with different temperature coefficients.
VL
A0
A1
R/W
CS
DB0
TO
DB11
FUNCTIONAL BLOCK DIAGRAM
AVSS AVDD
VREFP
I/O
REGISTER
AND
CONTROL
LOGIC
12
12
AD5725
INPUT
REG A
INPUT
REG B
INPUT
REG C
INPUT
REG D
DAC 12
REG A
DAC A
DAC 12
REG B
DAC B
DAC 12
REG C
DAC C
DAC 12
REG D
DAC D
DGND
CLR
LDAC
Figure 1.
VREFN
VOUTA
VOUTB
VOUTC
VOUTD
Digital controls allow the user to load or read back data from
any DAC, load any DAC, and transfer data to all DACs at
one time.
The AD5725 is available in a 28-lead SSOP package. 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
from +2.5 V to ±10 V. Power dissipation is less than 270 mW
with ±15 V supplies and only 40 mW with a +5 V supply.
Operation is specified over the temperature range of −40°C
to +85°C.
iCMOS® Process Technology
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. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2007–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD5725 Datasheet

Voltage Output DAC

No Preview Available !

AD5725 pdf
AD5725
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
AC Performance Characteristics ................................................ 5
Timing Characteristics, ............................................................... 6
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 14
REVISION HISTORY
8/13—Rev. B to Rev. C
Change Junction Temperature from 105°C to 150°C; Changed
Power Dissipation Package Condition from Derate 10 mW/°C
Above 70°C to Derate 10 mW/°C Above 60°C; Table 5 .............. 8
4/13—Rev. A to Rev. B
Changes to VREFN Input Current Parameter, Table 1 .................... 3
Changes to Figure 27 and Figure 28............................................. 17
Changes to Figure 29 and Figure 30............................................. 18
12/08—Rev. 0 to Rev. A
Changes to Figure 26...................................................................... 13
7/07—Revision 0: Initial Version
Power Dissipation Package (Derate 10 mW/°C Above 60°C)
Data Sheet
Theory of Operation ...................................................................... 15
DAC Architecture....................................................................... 15
Output Amplifiers ...................................................................... 15
Reference Inputs ......................................................................... 15
Parallel Interface ......................................................................... 15
Data Coding ................................................................................ 15
CLR............................................................................................... 15
Power Supplies ............................................................................ 17
Reference Configuration ........................................................... 17
Single +5 V Supply Operation .................................................. 18
Outline Dimensions ....................................................................... 19
Ordering Guide .......................................................................... 19
Rev. C | Page 2 of 20


Part Number AD5725
Description Voltage Output DAC
Maker Analog Devices
Total Page 20 Pages
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