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AD5290 데이터시트(PDF) 1 Page - Analog Devices

부품명 AD5290
상세설명  Compact 30 V / 15 V 256-Position Digital Potentiometer
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홈페이지  http://www.analog.com
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Compact +30 V / ±15 V 256-Position
Digital Potentiometer
Data Sheet
AD5290
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
©2005-2011 Analog Devices, Inc. All rights reserved.
FEATURES
256 position
10 kΩ, 50 kΩ, 100 kΩ
+20 V to +30 V single-supply operation
±10 V to ±15 V dual-supply operation
3-wire SPI®-compatible serial interface
Low temperature coefficient 35 ppm/°C typical
THD 0.006% typical
Midscale preset
Compact MSOP-10 package
Automotive temperature range: −40°C to +125°C
iCMOS™1 process technology
APPLICATIONS
High voltage DAC
Programmable power supply
Programmable gain and offset adjustment
Programmable filters and delays
Actuator control
Audio volume control
Mechanical potentiometer replacement
FUNCTIONAL BLOCK DIAGRAM
VDD
A
W
B
VSS
SDI
CLK
CS
SDO
DGND
POR
8
8
RS
8-BIT
LATCH
8-BIT
SERIAL
REGISTER
Q
D
CK
AD5290
Figure 1.
GENERAL DESCRIPTION
The AD5290 is one of the few high voltage, high performance,
and compact digital potentiometers2, 3 in the market at present.
This device can be used as a programmable resistor or resistor
divider. The AD5290 performs the same electronic adjustment
function as mechanical potentiometers, variable resistors, and
trimmers, with enhanced resolution, solid-state reliability, and
superior temperature stability.
With digital rather than manual control, the AD5290 provides
layout flexibility and allows closed-loop dynamic controllability.
The AD5290 is available in MSOP-10 package and has 10 kΩ,
50 kΩ, and 100 kΩ options. All parts are guaranteed to operate
over the −40°C to +125°C extended automotive temperature range.
1 iCMOS™ Process Technology. For analog systems designers 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.
2 The terms digital potentiometer and RDAC are used interchangeably.
3 The RDAC segmentation is protected by U.S. Patent Number 5,495,245.


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