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参数资料
| 型号： | AD5248EVAL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD5248 |
| 标准包装： | 1 |
| 主要目的： | 数字电位器 |
| 已用 IC / 零件： | AD5248 |
| 已供物品： | 板 |
| 相关产品： | AD5248BRMZ100-RL7-ND - IC POT DGTL DUAL 100K I2C 10MSOP AD5248BRMZ10-ND - IC DGTL POT DUAL 10K I2C 10-MSOP AD5248BRMZ100-ND - IC DGTL POT DUAL 100K I2C 10-MSO AD5248BRMZ50-ND - IC DGTL POT DUAL 50K I2C 10-MSOP AD5248BRMZ10-RL7-ND - IC POT DGTL DUAL 10K 10K 10MSOP AD5248BRMZ2.5-RL7-ND - IC DGTL POT DUAL 2.5K 10-MSOP AD5248BRMZ2.5-ND - IC DGTL POT DUAL 2.5K I2C 10MSOP AD5248BRM50-RL7-ND - IC DGTL POT DUAL 50K I2C 10-MSOP AD5248BRM50-ND - IC DGTL POT DUAL 50K I2C 10-MSOP AD5248BRM2.5-RL7-ND - IC DGTL POT DUAL 2.5K I2C 10MSOP 更多... |
Data Sheet
AD5243/AD5248
Rev. B | Page 15 of 20
CONSTANT BIAS TO RETAIN RESISTANCE SETTING
For users who desire nonvolatility but cannot justify the addi-
tional cost of an EEMEM, the AD5243/AD5248 can be considered
low cost alternatives by maintaining a constant bias to retain the
wiper setting. The AD5243/AD5248 are designed specifically for
low power applications, allowing low power consumption even
in battery-operated systems. The graph in Figure 44 demonstrates
the power consumption from a 3.4 V, 450 mAhr Li-Ion cell phone
battery connected to the AD5243/AD5248. The measurement
over time shows that the device draws approximately 1.3 A
and consumes negligible power. Over a course of 30 days, the
battery is depleted by less than 2%, the majority of which is due
to the intrinsic leakage current of the battery itself.
DAYS
B
A
T
ER
Y
L
IF
E
D
EPL
ET
ED
(%
)
0
90
92
94
96
5
10
15
98
100
102
104
106
108
110
20
25
30
04109-
0-
019
TA = 25°C
Figure 44. 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 the purpose of charging.
Although the resistance setting of the AD5243/AD5248 is 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 AD5243/AD5248. If
total power is lost, the user should be provided with a means to
adjust the setting accordingly.
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相关代理商/技术参数 |
参数描述 |
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| AD524A | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision Instrumentation Amplifier |
| AD524AD | 功能描述:IC AMP INST 1MHZ PREC LN 16CDIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:带卷 (TR) |
| AD524AD/+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Instrumentation Amp， Pin-Programmable |
| AD524ADZ | 功能描述:IC AMP INST 1MHZ PREC LN 16CDIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 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) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD524ADZ | 制造商:Analog Devices 功能描述:IC, INSTRUMENT AMP, 25MHZ, 110DB, DIP-16 |
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