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參數(shù)資料
| 型號： | AD5228BUJZ50-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 50K UP/DN TSOT23-8 |
| 標準包裝： | 3,000 |
| 接片： | 32 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標準值 35 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | 2 線按鈕 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-8 薄型，TSOT-23-8 |
| 供應商設備封裝： | TSOT-23-8 |
| 包裝： | 帶卷 (TR) |
| 配用： | EVAL-AD5228EBZ-ND - BOARD EVAL FOR AD5228 DGTL POT |
AD5228
Rev. A | Page 17 of 20
3.50
3.40
3.41
3.42
3.43
3.44
3.45
3.46
3.47
3.48
3.49
02468
10
1
04422-0-048
DAYS
BATTE
RY
V
O
LTAGE
(V
)
CONSTANT BIAS WITH SUPPLY TO
RETAIN RESISTANCE SETTING
2
TA = 25°C
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.
Figure 47. Battery Consumption Measurement
04422-0-047
VDD
AD5228
U1
GND
VDD
U2
GND
COMPONENT X
VDD
U3
GND
COMPONENT Y
GND
VDD
BATTE
RY
OR
SYSTEM
POW
E
R
SW1
+
–
Figure 46. Constant Bias AD5228 for Resistance Retention
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| AD522B | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Accuracy Data Acquisition Instrumentation Amplifier |
| AD522BD | 功能描述:IC AMP INST 1.5KHZ LDRIFT 14CDIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有關文件:TS1854A View All Specifications 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.25 V/µs 增益帶寬積:630kHz -3db帶寬:- 電流 - 輸入偏壓:16nA 電壓 - 輸入偏移:1000µV 電流 - 電源:162µA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SO 包裝:管件 |
| AD522SD | 制造商: 功能描述: 制造商:undefined 功能描述: |
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