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AD5246BKS100-RL7 PDF预览

AD5246BKS100-RL7

更新时间： 2024-01-08 08:34:39
品牌 Logo 应用领域
罗彻斯特 - ROCHESTER 光电二极管转换器电阻器
页数 文件大小 规格书
17页 1435K
描述
100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6, 2 X 2.10 MM, MO-203AB, SC-70, 6 PIN

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AD5246BKS100-RL7 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：6
Reach Compliance Code：unknown风险等级：5.36
Is Samacsys：N其他特性：IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY
标称带宽：0.04 kHz控制接口：2-WIRE SERIAL
转换器类型：DIGITAL POTENTIOMETERJESD-30 代码：R-PDSO-G6
JESD-609代码：e0长度：2 mm
湿度敏感等级：1功能数量：1
位置数：128端子数量：6
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：20%
最大电阻器端电压：3 V最小电阻器端电压：
座面最大高度：1.1 mm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：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：1.25 mm
Base Number Matches：1

AD5246BKS100-RL7 数据手册

 浏览型号AD5246BKS100-RL7的Datasheet PDF文件第11页浏览型号AD5246BKS100-RL7的Datasheet PDF文件第12页浏览型号AD5246BKS100-RL7的Datasheet PDF文件第13页浏览型号AD5246BKS100-RL7的Datasheet PDF文件第14页浏览型号AD5246BKS100-RL7的Datasheet PDF文件第15页浏览型号AD5246BKS100-RL7的Datasheet PDF文件第17页 
AD5246  
110%  
108%  
106%  
104%  
102%  
100%  
98%  
LAYOUT AND POWER SUPPLY BYPASSING  
It is a good practice to use a compact, minimum lead-length  
layout design. The leads to the inputs should be as direct as  
possible with a minimum conductor length. Ground paths  
should have low resistance and low inductance.  
T
= 25°  
C
A
Similarly, it is good practice to bypass the power supplies with  
quality capacitors for optimum stability. Supply leads to the  
device should be bypassed with 0.01 μF to 0.1 μF disc or chip  
ceramic capacitors. Low ESR 1 μF to 10 μF tantalum or  
electrolytic capacitors should also be applied at the supplies to  
minimize any transient disturbance and low frequency ripple  
(see Figure 34). Note that the digital ground should also be  
joined remotely to the analog ground at one point to minimize  
the ground bounce.  
96%  
94%  
92%  
90%  
0
5
10  
15  
20  
25  
30  
DAYS  
Figure 35. Battery Operating Life Depletion  
This demonstrates that constantly biasing the pot is not an  
impractical approach. Most portable devices do not require the  
removal of batteries for the purpose of charging. Although the  
resistance setting of the AD5246 will be 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 AD5246. If and when total power is lost,  
the user should be provided with a means to adjust the setting  
accordingly.  
V
DD  
V
DD  
+
C3  
C1  
10μF  
0.1μF  
AD5246  
GND  
Figure 34. Power Supply Bypassing  
EVALUATION BOARD  
CONSTANT BIAS TO RETAIN RESISTANCE SETTING  
An evaluation board, along with all necessary software, is  
available to program the AD5246 from any PC running  
Windows® 98, Windows 2000, or Windows XP®. The graphical  
user interface, as shown in Figure 36, is straightforward and  
easy to use. More detailed information is available in the user  
manual, which comes with the board.  
For users who desire nonvolatility but cannot justify the addi-  
tional cost for the EEMEM, the AD5246 may be considered as  
a low cost alternative by maintaining a constant bias to retain  
the wiper setting. The AD5246 was designed specifically with  
low power in mind, which allows low power consumption  
even in battery-operated systems. The graph in Figure 35  
demonstrates the power consumption from a 3.4 V 450 mA/hr  
Li-ion cell phone battery, which is connected to the AD5246.  
The measurement over time shows that the device draws  
approximately 1.3 μA and consumes negligible power. Over  
a course of 30 days, the battery was depleted by less than 2ꢀ,  
the majority of which is due to the intrinsic leakage current  
of the battery itself.  
Figure 36. AD5246 Evaluation Board Software  
Rev. A | Page 15 of 16  
 
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