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AD5222BR10 PDF预览

AD5222BR10

更新时间： 2024-01-29 02:35:35
品牌 Logo 应用领域
亚德诺 - ADI 电位器音频控制集成电路消费电路商用集成电路光电二极管
页数 文件大小 规格书
10页 176K
描述
Increment/Decrement Dual Digital Potentiometer

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AD5222BR10 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：SOIC
包装说明：SOP,针数：14
Reach Compliance Code：unknown风险等级：5.39
其他特性：CAN ALSO WORK WITH 5V SUPPLY商用集成电路类型：VOLUME CONTROL CIRCUIT
谐波失真：0.005%JESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：8.65 mm
湿度敏感等级：1信道数量：2
功能数量：1端子数量：14
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：240认证状态：COMMERCIAL
座面最大高度：1.75 mm最大供电电压 (Vsup)：2.7 V
最小供电电压 (Vsup)：2.3 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：TIN LEAD
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：3.9 mm

AD5222BR10 数据手册

 浏览型号AD5222BR10的Datasheet PDF文件第2页浏览型号AD5222BR10的Datasheet PDF文件第3页浏览型号AD5222BR10的Datasheet PDF文件第4页浏览型号AD5222BR10的Datasheet PDF文件第5页浏览型号AD5222BR10的Datasheet PDF文件第6页浏览型号AD5222BR10的Datasheet PDF文件第7页 
Increment/Decrement  
a
Dual Digital Potentiometer  
AD5222  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
128-Position, 2-Channel  
Potentiometer Replacement  
10 k⍀, 50 k⍀, 100 k⍀, 1 M⍀  
Very Low Power: 40 ␮A Max  
؎2.7 V Dual Supply Operation or  
2.7 V to 5.5 V Single Supply Operation  
Increment/Decrement Count Control  
V
AD5222  
DD  
A1  
W1  
B1  
UP/DOWN  
COUNTER  
DECODE  
U/D  
POR  
APPLICATIONS  
A2  
W2  
B2  
CS  
MODE  
DAC  
SELECT  
AND  
Stereo Channel Audio Level Control  
Mechanical Potentiometer Replacement  
Remote Incremental Adjustment Applications  
Instrumentation: Gain, Offset Adjustment  
Programmable Voltage-to-Current Conversion  
Line Impedance Matching  
UP/DOWN  
COUNTER  
DECODE  
DACSEL  
CLK  
ENABLE  
GND  
V
SS  
GENERAL DESCRIPTION  
mechanical or push-button switches (or other contact closure  
devices). This simple digital interface eliminates the need for  
microcontrollers in front panel interface designs.  
The AD5222 provides a dual channel, 128-position, digitally  
controlled variable-resistor (VR) device. This device performs  
the same electronic adjustment function as a potentiometer or  
variable resistor. These products were optimized for instrument  
and test equipment push-button applications. Choices between  
bandwidth or power dissipation are available as a result of the  
wide selection of end-to-end terminal resistance values.  
The AD5222 is available in the surface-mount (SO-14) package.  
For ultracompact solutions, selected models are available in the  
thin TSSOP-14 package. All parts are guaranteed to operate  
over the extended industrial temperature range of –40°C to  
+85°C. For 3-wire, SPI-compatible interface applications, see  
the AD5203/AD5204/AD5206, AD7376, and AD8400/AD8402/  
AD8403 products.  
The AD5222 contains two fixed resistors with wiper contacts that  
tap the fixed resistor value at a point determined by a digitally  
controlled up/down counter. The resistance between the wiper  
and either end point of the fixed resistor provides a constant  
resistance step size that is equal to the end-to-end resistance  
divided by the number of positions (e.g., RSTEP = 10 kΩ/128 =  
78 Ω). The variable resistor offers a true adjustable value of  
resistance, between Terminal A and the wiper, or Terminal B  
and the wiper. The fixed A-to-B terminal resistance of 10 kΩ,  
50 kΩ, 100 kΩ, or 1 MΩ has a nominal temperature coefficient  
of –35 ppm/°C.  
5V  
V
DD  
A1  
W1  
B1  
CS  
U/D  
U/D  
CLK  
INCREMENT  
A2  
W2  
B2  
The chip select CS, count CLK and U/D direction control inputs  
set the variable resistor position. The MODE determines whether  
both VRs are incremented together or independently. With  
MODE at logic zero, both wipers are incremented UP or DOWN  
without changing the relative settings between the wipers. Also,  
the relative ratio between the wipers is preserved if either wiper  
reaches the end of the resistor array. In the independent MODE  
(Logic 1) only the VR determined by the DACSEL pin is changed.  
DACSEL (Logic 0) changes RDAC 1. These inputs, which con-  
trol the internal up/down counter, can be easily generated with  
DACSEL  
MODE  
GND  
V
SS  
Figure 1. Typical Push-Button Control Application  
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, nor for any infringements of patents or other rights of third parties  
which 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  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  
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