參數(shù)資料
型號(hào)： AD5162BRM50-RL7
廠商： ANALOG DEVICES INC
元件分類： 數(shù)字電位計(jì)
英文描述： Dual 256-Position SPI Digital Potentiometer
中文描述： DUAL 50K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10
封裝： 3 X 4.90 MM, MO-187BA, MSOP-10
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 960K
代理商： AD5162BRM50-RL7
Dual 256-Position SPI
Digital Potentiometer
AD5162
FEATURES
2-channel, 256-position
End-to-end resistance: 2.5 k, 10 k, 50 k, 100 k
Compact MSOP-10 (3 mm × 4.9 mm) package
Fast settling time: t
S
= 5 μs typical on power-up
Full read/write of wiper register
Power-on preset to midscale
Extra package address decode pin AD0
Computer software replaces μC in factory programming
applications
Single supply: 2.7 V to 5.5 V
Low temperature coefficient: 35 ppm/°C
Low power: I
DD
= 6 μA max
Wide operating temperature: 40°C to +125°C
Evaluation board available
APPLICATIONS
Systems calibrations
Electronics level settings
Mechanical Trimmers replacement in new designs
Permanent factory PCB setting
Transducer adjustment of pressure, temperature, position,
chemical, and optical sensors
RF amplifier biasing
Automotive electronics adjustment
Gain control and offset adjustment
Rev.
A
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. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
2003 Analog Devices, Inc. All rights reserved.
www.analog.com
FUNCTIONAL BLOCK DIAGRAM
A1
A = 0
A = 1
V
DD
GND
SDI
CLK
CS
W1
WIPER
REGISTER 1
SPI INTERFACE
AD5162
0
B1
W2
WIPER
REGISTER 2
B2
Figure 1.
GENERAL DESCRIPTION
The AD5162 provides a compact 3 mm × 4.9 mm packaged
solution for dual 256-position adjustment applications. This
device performs the same electronic adjustment function as a
3-terminal mechanical potentiometer. Available in four different
end-to-end resistance values (2.5 k, 10 k, 50 k, 100 k),
this low temperature coefficient device is ideal for high accu-
racy and stability variable resistance adjustments. The wiper
settings are controllable through an SPI digital interface. The
resistance between the wiper and either endpoint of the fixed
resistor varies linearly with respect to the digital code
1
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