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参数资料
| 型号： | AD5246BKS100-R2 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 数字电位计 |
| 英文描述： | 128-Position I2C Compatible Digital Resistor |
| 中文描述： | 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO6 |
| 封装： | 2 X 2.10 MM, MO-203AB, SC-70, 6 PIN |
| 文件页数： | 15/20页 |
| 文件大小： | 991K |
| 代理商： | AD5246BKS100-R2 |
AD5246
CONSTANT BIAS TO RETAIN RESISTANCE SETTING
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 mAhr Li-ion cell
phone battery, which is connected to the AD5246. The measure-
ment 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 2%, the majority of
which is due to the intrinsic leakage current of the battery itself.
Rev. 0 | Page 15 of 20
DAYS
B
0
90%
92%
94%
96%
5
10
15
98%
100%
102%
104%
106%
108%
110%
20
25
30
0
T
A
= 25
°C
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 such
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.
EVALUATION BOARD
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.
0
Figure 36. AD5246 Evaluation Board Software
相关PDF资料 |
PDF描述 |
|---|---|
| AD5246BKS100-RL7 | 128-Position I2C Compatible Digital Resistor |
| AD5246BKS5-R2 | 128-Position I2C Compatible Digital Resistor |
| AD5246BKS5-RL7 | 128-Position I2C Compatible Digital Resistor |
| AD5246BKS50-R2 | 128-Position I2C Compatible Digital Resistor |
| AD5246BKS50-RL7 | 128-Position I2C Compatible Digital Resistor |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5246BKS100-RL7 | 制造商:Analog Devices 功能描述:Digital Potentiometer 128POS 100KOhm Single 6-Pin SC-70 T/R 制造商:Rochester Electronics LLC 功能描述:7-BIT I2C DIG TRIMMER - Tape and Reel |
| AD5246BKS10-R2 | 功能描述:IC POT DGTL 10K 128POS SC70-6 RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:2,500 系列:XDCP™ 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 ±300 ppm/°C 存储器类型:非易失 接口:I²C（设备位址） 电源电压:2.7 V ~ 5.5 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| AD5246BKS10-RL7 | 制造商:Analog Devices 功能描述:Digital Potentiometer 128POS 10KOhm Single 6-Pin SC-70 T/R |
| AD5246BKS5 | 制造商:Analog Devices 功能描述:DGTL POTENTIOMETER 128POS 5KOHM SGL 6PIN SC-70 - Bulk |
| AD5246BKS50-R2 | 功能描述:IC POT DGTL 50K 128POS SC70-6 RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:2,500 系列:XDCP™ 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 ±300 ppm/°C 存储器类型:非易失 接口:I²C（设备位址） 电源电压:2.7 V ~ 5.5 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
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