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AD5241BRU1M-REEL7 PDF预览

AD5241BRU1M-REEL7

更新时间： 2024-11-18 22:18:27
品牌 Logo 应用领域
亚德诺 - ADI 转换器电位器数字电位计电阻器光电二极管
页数 文件大小 规格书
16页 348K
描述
I2C Compatible 256-Position Digital Potentiometers

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中文翻译

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AD5241BRU1M-REEL7 数据手册

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I2C® Compatible  
256-Position Digital Potentiometers  
a
AD5241/AD5242  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
256 Positions  
10 kꢀ, 100 kꢀ, 1 Mꢀ  
A
W
B
1
O
O
2
1
1
1
Low Tempco 30 ppm/ꢁC  
Internal Power ON Midscale Preset  
Single-Supply 2.7 V to 5.5 V or  
Dual-Supply ꢂ2.7 V for AC or Bipolar Operation  
I2C Compatible Interface with Readback Capability  
Extra Programmable Logic Outputs  
Self-Contained Shutdown Feature  
Extended Temperature Range –40ꢁC to +105ꢁC  
SHDN  
AD5241  
V
DD  
RDAC  
REGISTER 1  
REGISTER 2  
V
SS  
ADDR  
DECODE  
8
APPLICATIONS  
Multimedia, Video, and Audio  
Communications  
SDA  
SCL  
GND  
PWR-ON  
RESET  
SERIAL INPUT REGISTER  
Mechanical Potentiometer Replacement  
Instrumentation: Gain, Offset Adjustment  
Programmable Voltage-to-Current Conversion  
Line Impedance Matching  
AD1  
AD0  
A
1
W
B
1
A
W
B
O
1
O
2
1
2
2 2  
REGISTER  
SHDN  
GENERAL DESCRIPTION  
V
DD  
The AD5241/AD5242 provide a single-/dual-channel, 256-  
position, digitally controlled variable resistor (VR) device. These  
devices perform the same electronic adjustment function as a  
potentiometer, trimmer, or variable resistor. Each VR offers a  
completely programmable value of resistance between the A  
Terminal and the wiper, or the B Terminal and the wiper.  
For AD5242, the fixed A-to-B terminal resistance of 10 kΩ,  
100 kΩ, or 1 MΩ has a 1% channel-to-channel matching  
tolerance. The nominal temperature coefficient of both parts is  
30 ppm/°C.  
RDAC  
REGISTER 1  
RDAC  
REGISTER 2  
V
SS  
ADDR  
DECODE  
AD5242  
8
1
SDA  
SCL  
GND  
PWR-ON  
RESET  
SERIAL INPUT REGISTER  
AD1  
AD0  
Wiper position programming defaults to midscale at system  
power ON. Once powered, the VR wiper position is programmed  
by an I2C compatible 2-wire serial data interface. Both parts  
have available two extra programmable logic outputs that  
enable users to drive digital loads, logic gates, LED drivers, and  
analog switches in their system.  
The AD5241/AD5242 are available in surface-mount (SOIC-14/-  
16) packages and, for ultracompact solutions, TSSOP-14/-16  
packages. All parts are guaranteed to operate over the  
extended temperature range of –40°C to +105°C. For 3-wire,  
SPI compatible interface applications, please refer to AD5200,  
AD5201, AD5203, AD5204, AD5206, AD5231*, AD5232*,  
AD5235*, AD7376, AD8400, AD8402, and AD8403 products.  
*Nonvolatile digital potentiometer  
I2C is a registered trademark of Philips Corporation.  
REV. B  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© Analog Devices, Inc., 2002  
1234567...16

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AD5241BRU1M-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
AD5241BRZ1M-REEL ADI

完全替代

 I2C-Compatible, 256-Position Digital Potentiometers
AD5241BRUZ1M-R7 ADI

完全替代

 I2C-Compatible, 256-Position Digital Potentiometers
AD5241BRUZ1M ADI

完全替代

 I2C-Compatible, 256-Position Digital Potentiometers

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