參數(shù)資料
型號(hào)： AD5228
廠商： Analog Devices, Inc.
元件分類： 數(shù)字電位計(jì)
英文描述： 32-Position Manual Up/Down Control Potentiometer
中文描述： 32工位手冊(cè)上/下控制電位器
文件頁(yè)數(shù)： 17/20頁(yè)
文件大?。?/td> 341K
代理商： AD5228
AD5228
CONSTANT BIAS WITH SUPPLY TO
RETAIN RESISTANCE SETTING
Users who consider EEMEM potentiometers but cannot justify
the additional cost and programming for their designs can
consider constantly biasing the AD5228 with the supply to
retain the resistance setting as shown in Figure 46. The AD5228
is designed specifically with low power to allow power conser-
vation even in battery-operated systems. As shown in Figure 47,
a similar low power digital potentiometer is biased with a 3.4 V
450 mA/hour Li-Ion cell phone battery. The measurement shows
that the device drains negligible power. Constantly biasing the
potentiometer is a practical approach because most of the
portable devices do not require detachable batteries for charging.
Although the resistance setting of the AD5228 is lost when the
battery needs to be replaced, this event occurs so infrequently
that the inconvenience is minimal for most applications.
Rev. 0 | Page 17 of 20
0
V
DD
AD5228
U1
GND
V
DD
U2
GND
COMPONENT X
V
DD
U3
GND
COMPONENT Y
GND
V
DD
B
S
SW1
+
–
Figure 46. Constant Bias AD5228 for Resistance Retention
3.50
3.40
3.41
3.42
3.43
3.44
3.45
3.46
3.47
3.48
3.49
0
2
4
6
8
10
12
0
DAYS
B
T
A
= 25
°
C
Figure 47. Battery Consumption Measurement
相關(guān)PDF資料
PDF描述
AD5228BUJZ1002-R2 32-Position Manual Up/Down Control Potentiometer
AD5228BUJZ1002-RL7 Memory Card Socket; Number of Contacts:50; Pitch Spacing:0.635mm; Contact Termination:PCB SMT; Contact Material:Copper Alloy; Contact Plating:Gold Over Nickel; Gender:Male; Number of Rows:2
AD5228BUJZ102-R2 32-Position Manual Up/Down Control Potentiometer
AD5228BUJZ102-RL7 32-Position Manual Up/Down Control Potentiometer
AD5228BUJZ502-R2 CF CARD HEADER TYPE II SMD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5228BUJZ10 制造商:Analog Devices 功能描述:DGTL POTENTIOMETER 32POS 10KOHM SGL 8PIN TSOT - Bulk
AD5228BUJZ100 制造商:Analog Devices 功能描述:DGTL POTENTIOMETER 32POS 100KOHM SGL 8PIN TSOT - Bulk
AD5228BUJZ1002-R2 制造商:AD 制造商全稱:Analog Devices 功能描述:32-Position Manual Up/Down Control Potentiometer
AD5228BUJZ1002-RL7 制造商:AD 制造商全稱:Analog Devices 功能描述:32-Position Manual Up/Down Control Potentiometer
AD5228BUJZ100-R2 功能描述:IC DGTL POT 100K 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(chǔ)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)
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