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AD5207BRU100-REEL7 PDF预览

AD5207BRU100-REEL7

更新时间： 2024-01-01 22:16:15
品牌 Logo 应用领域
亚德诺 - ADI 转换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 660K
描述
2-Channel, 256-Position Digital Potentiometer

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AD5207BRU100-REEL7 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP,针数：14
Reach Compliance Code：unknown风险等级：5.84
Is Samacsys：N其他特性：IT CAN ALSO OPERATE FROM A +/-2.2V TO +/-2.7V DUAL SUPPLY
标称带宽：0.071 kHz控制接口：3-WIRE SERIAL
转换器类型：DIGITAL POTENTIOMETERJESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：5 mm
湿度敏感等级：1功能数量：2
位置数：256端子数量：14
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：240认证状态：COMMERCIAL
电阻定律：LINEAR最大电阻容差：30%
最大电阻器端电压：5 V最小电阻器端电压：
座面最大高度：1.2 mm标称供电电压：5 V
表面贴装：YES标称温度系数：500 ppm/ °C
温度等级：AUTOMOTIVE端子面层：TIN LEAD
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
标称总电阻：100000 Ω宽度：4.4 mm
Base Number Matches：1

AD5207BRU100-REEL7 数据手册

 浏览型号AD5207BRU100-REEL7的Datasheet PDF文件第2页浏览型号AD5207BRU100-REEL7的Datasheet PDF文件第3页浏览型号AD5207BRU100-REEL7的Datasheet PDF文件第4页浏览型号AD5207BRU100-REEL7的Datasheet PDF文件第5页浏览型号AD5207BRU100-REEL7的Datasheet PDF文件第6页浏览型号AD5207BRU100-REEL7的Datasheet PDF文件第7页 
2-Channel, 256-Position  
Digital Potentiometer  
a
AD5207  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
256-Position, 2-Channel  
Potentiometer Replacement  
10 kꢀ, 50 kꢀ, 100 kꢀ  
A1  
W1  
B1  
A2  
W2  
B2  
Power Shut-Down, Less than 5 ꢁA  
2.7 V to 5.5 V Single Supply  
ꢂ2.7 V Dual Supply  
3-Wire SPI-Compatible Serial Data Input  
Midscale Preset During Power-On  
SHDN  
RDAC1 REGISTER  
R
RDAC2 REGISTER  
R
V
DD  
V
SS  
APPLICATIONS  
LOGIC  
POWER-  
CS  
ON  
Mechanical Potentiometer Replacement  
Stereo Channel Audio Level Control  
Instrumentation: Gain, Offset Adjustment  
Programmable Voltage-to-Current Conversion  
Programmable Filters, Delays, Time Constants  
Line Impedance Matching  
RESET  
8
AD5207  
CLK  
SDI  
SDO  
SERIAL INPUT REGISTER  
DGND  
Automotive Electronics Adjustment  
The first two bits are address bits. The following eight bits are  
the data bits that represent the 256 steps of the resistance value.  
The reason for two address bits instead of one is to be compatible  
with similar products such as AD8402 so that drop-in replacement  
is possible. The address bit determines the corresponding VR  
latch to be loaded with the data bits during the returned positive  
edge of CS strobe. A serial data output pin at the opposite end  
of the serial register allows simple daisy chaining in multiple  
VR applications without additional external decoding logic.  
GENERAL DESCRIPTION  
The AD5207 provides dual channel, 256-position, digitally  
controlled variable resistor (VR) devices that perform the same  
electronic adjustment function as a potentiometer or variable  
resistor. Each channel of the AD5207 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 10 kΩ, 50 kΩ or 100 kΩ  
has a 1% channel-to-channel matching tolerance with a nomi-  
nal temperature coefficient of 500 ppm/°C. A unique switching  
circuit minimizes the high glitch inherent in traditional switched  
resistor designs and avoids any make-before-break or break-  
before-make operation.  
An internal reset block will force the wiper to the midscale posi-  
tion during every power-up condition. The SHDN pin forces an  
open circuit on the A Terminal and at the same time shorts the  
wiper to the B Terminal, achieving a microwatt power shutdown  
state. When SHDN is returned to logic high, the previous latch  
settings put the wiper in the same resistance setting prior to  
shutdown. The digital interface remains active during shutdown;  
code changes can be made to produce new wiper positions when  
the device is resumed from shutdown.  
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. Ten bits, to make up the  
data word, are required and clocked into the serial input register.  
The AD5207 is available in 1.1 mm thin TSSOP-14 package,  
which is suitable for PCMCIA applications. All parts are guaran-  
teed to operate over the extended industrial temperature range  
of –40°C to +125°C.  
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., 2001  
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