參數(shù)資料
型號(hào)： AD5228BUJZ50-R2
廠(chǎng)商： ANALOG DEVICES INC
元件分類(lèi)： 數(shù)字電位計(jì)
英文描述： 32-Position Manual Up/Down Control Potentiometer
中文描述： 50K DIGITAL POTENTIOMETER, PUSH-BUTTON CONTROL INTERFACE, 32 POSITIONS, PDSO8
封裝： 2.90 X 3 MM, ROHS COMPLIANT, MO-193BA,TSOT-23, 8 PIN
文件頁(yè)數(shù)： 17/20頁(yè)
文件大?。?/td> 341K
代理商： AD5228BUJZ50-R2
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(lèi)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(lèi)型:非易失 接口:3 線(xiàn)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(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 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(chēng):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
AD522B 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:High Accuracy Data Acquisition Instrumentation Amplifier
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