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AD5160 Datasheet PDF Download - Analog Devices

Номер произв AD5160
Описание 256-Position SPI-Compatible Digital Potentiometer
Производители Analog Devices
логотип Analog Devices логотип 
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AD5160 Даташит, Описание, Даташиты
Data Sheet
FEATURES
256-position
End-to-end resistance: 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Compact SOT-23-8 (2.9 mm × 3 mm) package
SPI-compatible interface
Power-on preset to midscale
Single supply: 2.7 V to 5.5 V
Low temperature coefficient: 45 ppm/°C
Low power, IDD = 8 μA
Wide operating temperature: –40°C to +125°C
Evaluation board available
APPLICATIONS
Mechanical potentiometer replacement in new designs
Transducer adjustment of pressure, temperature, position,
chemical, and optical sensors
RF amplifier biasing
Gain control and offset adjustment
GENERAL DESCRIPTION
The AD5160 provides a compact 2.9 mm × 3 mm packaged
solution for 256-position adjustment applications. These
devices perform the same electronic adjustment function as
mechanical potentiometers1 or variable resistors but with
enhanced resolution, solid-state reliability, and superior low
temperature coefficient performance.
256-Position SPI-Compatible
Digital Potentiometer
AD5160
FUNCTIONAL BLOCK DIAGRAM
VDD
CS
SDI
CLK
SPI INTERFACE
A
W
WIPER
REGISTER
B
GND
Figure 1.
PIN CONFIGURATION
W1
8A
VDD 2
GND 3
CLK 4
AD5160
TOP VIEW
(Not to Scale)
7B
6 CS
5 SDI
Figure 2.
The wiper settings are controllable through an SPI-compatible
digital interface. The resistance between the wiper and either
end point of the fixed resistor varies linearly with respect to the
digital code transferred into the RDAC latch.
Operating from a 2.7 V to 5.5 V power supply and consuming
less than 5 μA allows for usage in portable battery-operated
applications.
1 The terms digital potentiometer, VR, and RDAC are used interchangeably.
Rev. C
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2003–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
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AD5160 Даташит, Описание, Даташиты
AD5160* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
View a parametric search of comparable parts
Evaluation Kits
• AD5160 Evaluation Board
Documentation
Application Notes
• AN-686: Implementing an I2C® Reset
Data Sheet
• AD5160: 256-Position SPI-Compatible Digital
Potentiometer Data Sheet
User Guides
• UG-623: Evaluation Board for the AD5160 Digital
Potentiometer
Software and Systems Requirements
• AD5160 - No-OS Driver for Microchip Microcontroller
Platforms
• AD5160 - No-OS Driver for Renesas Microcontroller
Platforms
• Digital Potentiometer Linux Driver
• AD5160 Pmod Xilinx FPGA Reference Design
Reference Materials
Technical Articles
• Precision Programmable Current Sources Use Digital Pots
Design Resources
• AD5160 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD5160 EngineerZone Discussions
Sample and Buy
Visit the product page to see pricing options
Technical Support
Submit a technical question or find your regional support
number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.
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AD5160 Даташит, Описание, Даташиты
AD5160
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Pin Configuration............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics—5 kΩ Version.................................. 3
10 kΩ, 50 kΩ, 100 kΩ Versions .................................................. 4
Timing Characteristics—All Versions ....................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
REVISION HISTORY
11/14—Rev. B to Rev. C
Changes to Ordering Guide .......................................................... 16
5/09—Rev. A to Rev. B
Changes to Ordering Guide .......................................................... 16
1/09—Rev. 0 to Rev. A
Deleted Shutdown Supply Current Parameter and
Endnote 7, Table 1 ............................................................................ 3
Changes to Resistor Noise Voltage Density Parameter,
Table 1 ................................................................................................ 3
Deleted Shutdown Supply Current Parameter and
Endnote 7, Table 2 ............................................................................ 4
Changes to Resistor Noise Voltage Density Parameter,
Table 2 ................................................................................................ 4
Added Endnote to Table 3 ............................................................... 5
Changes to Table 4............................................................................ 6
Changes to the Rheostat Operation Section ............................... 14
Deleted Terminal Voltage Operating Range Section and
Figure 41, Renumbered Figures Sequentially ............................. 13
Changes to Figure 40 and Figure 41............................................. 15
Changes to Ordering Guide .......................................................... 16
5/03—Revision 0: Initial Version
Data Sheet
Typical Performance Characteristics ..............................................8
Test Circuits..................................................................................... 12
SPI Interface .................................................................................... 13
Theory of Operation ...................................................................... 14
Programming the Variable Resistor......................................... 14
Programming the Potentiometer Divider............................... 15
SPI-Compatible 3-Wire Serial Bus........................................... 15
ESD Protection ........................................................................... 15
Power-Up Sequence ................................................................... 15
Layout and Power Supply Bypassing ....................................... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 16
Rev. C | Page 2 of 16
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