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參數(shù)資料
| 型號： | AD5228BUJZ502-RL7 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 32-Position Manual Up/Down Control Potentiometer |
| 中文描述： | 32工位手冊上/下控制電位器 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 341K |
| 代理商： | AD5228BUJZ502-RL7 |
AD5228
POWER-UP AND POWER-DOWN SEQUENCES
Because of the ESD protection diodes that limit the voltage
compliance at Terminals A, B, and W (Figure 39), it is important
to power on V
DD
before applying any voltage to Terminals A, B,
and W. Otherwise, the diodes are forward-biased such that V
DD
is powered on unintentionally and can affect other parts of the
DD
should be powered down last. The ideal
power-on sequence is in the following order: GND, V
DD
, and
V
A/B/W
. The order of powering V
A
, V
B
, and V
W
is not important
as long as they are powered on after V
DD
. The states of the PU
and PD pins can be logic high or floating, but they should not
be logic low during power-on.
Rev. 0 | Page 14 of 20
LAYOUT AND POWER SUPPLY BIASING
It is always a good practice to use compact, minimum lead
length layout design. The leads to the input should be as direct
as possible with a minimum conductor length. Ground paths
should have low resistance and low inductance. It is also good
practice to bypass the power supplies with quality capacitors.
Low ESR (equivalent series resistance) 1 μF to 10 μF tantalum
or electrolytic capacitors should be applied at the supplies to
minimize any transient disturbance and to filter low frequency
ripple. Figure 39 illustrates the basic supply bypassing configu-
ration for the AD5228.
0
V
DD
V
DD
+
GND
AD5228
C2
10
μ
F
C1
0.1
μ
F
Figure 40. Power Supply Bypassing
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5228BUJZ50-R2 | 功能描述:IC DGTL POT 50K UP/DN TSOT23-8 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 ±300 ppm/°C 存儲器類型:非易失 接口:I²C（設(shè)備位址） 電源電壓:2.7 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| AD5228BUJZ50-R2 | 制造商:Analog Devices 功能描述:DIGIPOT 5BIT UP/DOWN 50K, SMD, 5228 |
| AD5228BUJZ50-RL7 | 功能描述:IC DGTL POT 50K UP/DN TSOT23-8 RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| AD5228EVAL | 制造商:AD 制造商全稱:Analog Devices 功能描述:32-Position Manual Up/Down Control Potentiometer |
| AD522AD | 制造商:Rochester Electronics LLC 功能描述:INSTRUMENTATION AMPLIFIER - Bulk |
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