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AD5245BRJZ10-RL7 PDF预览

AD5245BRJZ10-RL7

更新时间： 2024-02-04 04:54:06
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
20页 687K
描述
256-Position I2C-Compatible Digital Potentiometer

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中文翻译

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AD5245BRJZ10-RL7 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：LSSOP, TSSOP8,.1针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：1.11
其他特性：IT CAN ALSO OPERATE WITH 5V NOMINAL SUPPLY标称带宽：0.6 kHz
控制接口：2-WIRE SERIAL转换器类型：DIGITAL POTENTIOMETER
JESD-30 代码：R-PDSO-G8JESD-609代码：e4
长度：2.9 mm湿度敏感等级：1
功能数量：1位置数：256
端子数量：8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：LSSOP封装等效代码：TSSOP8,.1
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：3/5 V
认证状态：Not Qualified电阻定律：LINEAR
最大电阻容差：30%最大电阻器端电压：3 V
最小电阻器端电压：座面最大高度：1.45 mm
子类别：Digital Potentiometers标称供电电压：3 V
表面贴装：YES标称温度系数：45 ppm/ °C
温度等级：AUTOMOTIVE端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
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：40
标称总电阻：10000 Ω宽度：1.6 mm
Base Number Matches：1

AD5245BRJZ10-RL7 数据手册

 浏览型号AD5245BRJZ10-RL7的Datasheet PDF文件第12页浏览型号AD5245BRJZ10-RL7的Datasheet PDF文件第13页浏览型号AD5245BRJZ10-RL7的Datasheet PDF文件第14页浏览型号AD5245BRJZ10-RL7的Datasheet PDF文件第16页浏览型号AD5245BRJZ10-RL7的Datasheet PDF文件第17页浏览型号AD5245BRJZ10-RL7的Datasheet PDF文件第18页 
AD5245  
Although the resistance setting of the AD5245 is lost when the  
battery needs replacement, such events occur rather infrequently  
so that this inconvenience is justified by the lower cost and  
smaller size offered by the AD5245. If total power is lost, then  
the user should be provided with a means to adjust the setting  
accordingly.  
CONSTANT BIAS TO RETAIN RESISTANCE SETTING  
For users who desire nonvolatility but cannot justify the  
additional cost for the EEMEM, the AD5245 can be considered  
a low cost alternative by maintaining a constant bias to retain  
the wiper setting. The AD5245 is designed specifically with low  
power in mind, which allows low power consumption even in  
battery-operated systems. Figure 42 demonstrates the power  
consumption from a 3.4 V, 450 mA-hr Li-Ion cell phone battery  
that is connected to the AD5245. The measurement over time  
shows that the device draws approximately 1.3 µA and  
EVALUATION BOARD  
An evaluation board, along with all necessary software, is  
available to program the AD5245 from any PC running  
Windows® 98/2000/XP. The graphical user interface, as shown  
in Figure 43, is straightforward and easy to use. More detailed  
information is available in the user manual, which is provided  
with the board.  
consumes negligible power. Over a course of 30 days, the  
battery is depleted by less than 2ꢀ, the majority of which is due  
to the intrinsic leakage current of the battery itself.  
110%  
T
= 25°C  
A
108%  
106%  
104%  
102%  
100%  
98%  
96%  
94%  
92%  
Figure 43. AD5245 Evaluation Board Software  
90%  
0
5
10  
15  
20  
25  
30  
The AD5245 starts at midscale upon power-up. To increment or  
decrement the resistance, the user can simply move the scroll-  
bars on the left. To write a specific value, the user should use the  
bit pattern in the upper screen and click the Run button. The  
format of writing data to the device is shown in Table 8. To read  
the data from the device, the user can simply click the Read  
button. The format of the read bits is shown in Table 9.  
DAYS  
Figure 42. Battery Operating Life Depletion  
This demonstrates that constantly biasing the potentiometer  
can be a practical approach. Most portable devices do not  
require the removal of batteries for charging.  
Rev. B | Page 15 of 20  
 
 
 
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中文翻译

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