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AD5260BRU200

更新时间： 2024-11-03 22:53:27
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
20页 841K
描述
1-/2-Channel 15 V Digital Potentiometers

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AD5260BRU200 数据手册

 浏览型号AD5260BRU200的Datasheet PDF文件第2页浏览型号AD5260BRU200的Datasheet PDF文件第3页浏览型号AD5260BRU200的Datasheet PDF文件第4页浏览型号AD5260BRU200的Datasheet PDF文件第5页浏览型号AD5260BRU200的Datasheet PDF文件第6页浏览型号AD5260BRU200的Datasheet PDF文件第7页 
1-/2-Channel  
15 V Digital Potentiometers  
a
AD5260/AD5262  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
256 Positions  
A
W
B
AD5260 – 1-Channel  
AD5262 – 2-Channel (Independently Programmable)  
Potentiometer Replacement  
SHDN  
AD5260  
20 k⍀, 50 k⍀, 200 k⍀  
V
DD  
RDAC  
Low Temperature Coefficient 35 ppm/؇C  
4-Wire SPI-Compatible Serial Data Input  
5 V to 15 V Single-Supply; ؎5.5 V Dual-Supply Operation  
Power ON Mid-Scale Preset  
REGISTER  
V
SS  
V
L
POWER-ON  
RESET  
PR  
CS  
LOGIC  
8
APPLICATIONS  
CLK  
SDI  
GND  
Mechanical Potentiometer Replacement  
Instrumentation: Gain, Offset Adjustment  
Stereo Channel Audio Level Control  
Programmable Voltage to Current Conversion  
Programmable Filters, Delays, Time Constants  
Line Impedance Matching  
SDO  
SERIAL INPUT REGISTER  
A1 W1 B1  
A2 W2 B2  
Low Resolution DAC Replacement  
SHDN  
GENERAL DESCRIPTION  
V
DD  
The AD5260/AD5262 provide a single- or dual-channel, 256-  
position, digitally controlled variable resistor (VR) device.* These  
devices perform the same electronic adjustment function as a  
potentiometer or variable resistor. Each channel of the AD5260/  
AD5262 contains a fixed resistor with a wiper contact that taps the  
fixed resistor value at a point determined by a digital code loaded  
into the SPI-compatible serial-input register. The resistance between  
the wiper and either end point of the fixed resistor varies linearly  
with respect to the digital code transferred into the VR latch. The  
variable resistor offers a completely programmable value of resistance,  
between the A terminal and the wiper or the B terminal and the wiper.  
The fixed A to B terminal resistance of 20 kW, 50 kW, or 200 kW has  
a nominal temperature coefficient of 35 ppm/∞C. Unlike the majority  
of the digital potentiometers in the market, these devices can operate  
up to 15 V or ±5 V provided proper supply voltages are furnished.  
RDAC1 REGISTER  
RDAC2 REGISTER  
V
SS  
V
L
POWER-ON  
RESET  
PR  
CS  
LOGIC  
8
CLK  
SDI  
SDO  
SERIAL INPUT REGISTER  
GND  
AD5262  
100  
R
R
WB  
WA  
75  
50  
25  
0
Each VR has its own VR latch, which holds its programmed resistance  
value. These VR latches are updated from an internal serial-to-parallel  
shift register, which is loaded from a standard 3-wire serial-input  
digital interface. The AD5260 contains an 8-bit serial register  
while the AD5262 contains a 9-bit serial register. Each bit is clocked  
into the register on the positive edge of the CLK. The AD5262  
address bit determines the corresponding VR latch to be loaded  
with the last 8 bits of the data word during the positive edging of  
CS strobe. A serial data output pin at the opposite end of the serial  
register enables simple daisy chaining in multiple VR applications  
without additional external decoding logic. An optional reset pin  
(PR) forces the wiper to the mid-scale position by loading 80H into  
the VR latch.  
0
64  
128  
192  
256  
CODE – Decimal  
Figure 1. RWA and RWB vs. Code  
The AD5260/AD5262 are available in thin surface-mount TSSOP-14  
and TSSOP-16 packages. All parts are guaranteed to operate over  
the extended industrial temperature range of –40∞C to +85∞C.  
*The terms digital potentiometers, VR, and RDAC are used interchangeably.  
REV. 0  
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...20

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AD5260BRU200 替代型号

型号 品牌 替代类型 描述 数据表
AD5260BRUZ200-RL7 ADI

完全替代

 1-/2-Channel 15 V Digital Potentiometer
AD5260BRUZ200 ADI

完全替代

 1-/2-Channel 15 V Digital Potentiometer

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AD5260BRUZ20-REEL7 ADI

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AD5260BRUZ20-RL7 ADI

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