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AD5425 - Analog Devices - High Bandwidth Multiplying DAC

Номер произв AD5425
Описание High Bandwidth Multiplying DAC
Производители Analog Devices
логотип Analog Devices логотип 
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AD5425 Даташит, Описание, Даташиты
Data Sheet
8-Bit, High Bandwidth
Multiplying DAC with Serial Interface
AD5425
FEATURES
GENERAL DESCRIPTION
2.5 V to 5.5 V supply operation
50 MHz serial interface
2.47 MSPS update rate
INL of ±0.25 LSB
10 MHz multiplying bandwidth
±10 V reference input
Low glitch energy: <2 nV-s
Extended temperature range: −40°C to +125°C
10-lead MSOP package
Guaranteed monotonic
4-quadrant multiplication
Power-on reset with brownout detection
LDAC function
The AD54251 is a CMOS, 8-bit, current output digital-to-analog
converter that operates from a 2.5 V to 5.5 V power supply,
making it suitable for battery-powered applications and many
other applications.
This DAC utilizes a double buffered, 3-wire serial interface that
is compatible with SPI®, QSPI, MICROWIRE, and most DSP
interface standards. An LDAC pin is also provided, which
allows simultaneous updates in a multi-DAC configuration. On
power-up, the internal shift register and latches are filled with
0s and the DAC outputs are 0 V.
As a result of manufacturing on a CMOS submicron process,
0.4 µA typical power consumption
this DAC offers excellent 4-quadrant multiplication charac-
teristics with large signal multiplying bandwidths of 10 MHz.
APPLICATIONS
Portable battery-powered applications
Waveform generators
Analog processing
Instrumentation applications
Programmable amplifiers and attenuators
The applied external reference input voltage (VREF) determines
the full-scale output current. An integrated feedback resistor,
RFB, provides temperature tracking and full-scale voltage output
when combined with an external I-to-V precision amplifier.
The AD5425 is available in a small, 10-lead MSOP package.
Digitally controlled calibration
Programmable filters and oscillators
Composite video
Ultrasound
Gain, offset, and voltage trimming
FUNCTIONAL BLOCK DIAGRAM
VDD
VREF
AD5425
8-BIT
R-2R DAC
R
RFB
IOUT1
IOUT2
LDAC
POWER-ON
RESET
DAC REGISTER
INPUT LATCH
SYNC
SCLK
SDIN
CONTROL LOGIC AND
INPUT SHIFT REGISTER
GND
Figure 1.
1 U.S. Patent No. 5,969,657.
Rev. C
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
www.analog.com
Fax: 781.461.3113 ©2004–2012 Analog Devices, Inc. All rights reserved.
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AD5425 Даташит, Описание, Даташиты
IMPORTANT LINKS for the AD5425*
Last content update 10/02/2013 05:42 pm
PARAMETRIC SELECTION TABLES
Data Converters: Overview of AD54xx Devices
Find Similar Products By Operating Parameters
AD5450 8-Bit High Bandwidth Multiplying DACs with Serial Interface
AD5432 High Bandwidth CMOS 10-Bit Serial Interface Multiplying D/A
Converter
AD5443 High Bandwidth CMOS 12-Bit Serial Interface Multiplying D/A
Converter
AD5453 14-Bit High Bandwidth Multiplying DACs with Serial Interface
DESIGN COLLABORATION COMMUNITY
Collaborate Online with the ADI support team and other designers
about select ADI products.
Follow us on Twitter: www.twitter.com/ADI_News
Like us on Facebook: www.facebook.com/AnalogDevicesInc
DOCUMENTATION
AN-912: Driving a Center-Tapped Transformer with a Balanced
Current-Output DAC
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build
Programmable Gain Amplifier, Part 1
AN-349: Keys to Longer Life for CMOS
AN-137: A Digitally Programmable Gain and Attenuation Amplifier
Design
Digital to Analog Converters ICs Solutions Bulletin
4-Quadrant Multiplying D/A Converters
DESIGN SUPPORT
Submit your support request here:
Linear and Data Converters
Embedded Processing and DSP
Telephone our Customer Interaction Centers toll free:
Americas:
1-800-262-5643
Europe:
00800-266-822-82
China:
4006-100-006
India:
1800-419-0108
Russia:
8-800-555-45-90
Quality and Reliability
Lead(Pb)-Free Data
DESIGN TOOLS, MODELS, DRIVERS & SOFTWARE
BeMicro FPGA Project for AD5425 with Nios driver
AD5425 FMC-SDP Interposer & Evaluation Board / Xilinx KC705
Reference Design
EVALUATION KITS & SYMBOLS & FOOTPRINTS
View the Evaluation Boards and Kits page for documentation and
purchasing
Symbols and Footprints
SAMPLE & BUY
AD5425
View Price & Packaging
Request Evaluation Board
Request Samples
Check Inventory & Purchase
Find Local Distributors
Powered by TCPDF (www.tcpdf.org)
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet.
Note: Dynamic changes to the content on this page (labeled 'Important Links') does not
constitute a change to the revision number of the product data sheet.
This content may be frequently modified.
Free Datasheet http://www.datasheet4u.com/
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AD5425 Даташит, Описание, Даташиты
AD5425
TABLE OF CONTENTS
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics..................................................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Terminology .................................................................................... 13
Theory of Operation ...................................................................... 14
Circuit Operation ....................................................................... 14
Single-Supply Applications ....................................................... 16
REVISION HISTORY
9/12—Rev. B to Rev. C
Change to Features ............................................................................1
6/12—Rev. A to Rev. B
Deleted ADSP-2103 and changed ADSP-2191 to
ADSP-2191M Throughout............................................................ 19
Deleted Evaluation Board Section and Operating the Evaluation
Board Section, deleted Figure 46 to Figure 49, and deleted
Table 11 ............................................................................................ 23
Changes to Ordering Guide .......................................................... 23
3/05—Rev. 0 to Rev. A
Updated Format................................................................ Universal
Changes to Specifications Section.................................................3
Added Figure 18, Figure 20, Figure 21 .......................................10
Change to Table 7 ..........................................................................18
2/04—Revision 0: Initial Version
Data Sheet
Positive Output Voltage ............................................................. 16
Adding Gain................................................................................ 17
DACs Used as a Divider or Programmable Gain Element ... 17
Reference Selection .................................................................... 17
Amplifier Selection .................................................................... 18
Serial Interface ............................................................................ 19
Microprocessor Interfacing....................................................... 19
PCB Layout and Power Supply Decoupling................................ 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
Rev. C | Page 2 of 24
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