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參數(shù)資料
| 型號(hào)： | AD5220 |
| 廠商： | Analog Devices, Inc. |
| 元件分類(lèi)： | 數(shù)字電位計(jì) |
| 英文描述： | Increment/Decrement Digital Potentiometer(增量/減量數(shù)字電位器) |
| 中文描述： | 遞增/遞減數(shù)字電位器（增量/減量數(shù)字電位器） |
| 文件頁(yè)數(shù)： | 9/10頁(yè) |
| 文件大?。?/td> | 284K |
| 代理商： | AD5220 |
AD5220
–9–
REV. 0
PROGRAMMING THE POTENTIOMETER DIVIDER
Voltage Output Operation
The digital potentiometer easily generates an output voltage
proportional to the input voltage applied to a given terminal.
For example connecting A Terminal to +5 V and B Terminal to
ground produces an output voltage at the wiper which can be
any value starting at zero volts up to 1 LSB less than +5 V. Each
LSB of voltage is equal to the voltage applied across terminals
AB divided by the 128-position resolution of the potentiometer
divider. The general equation defining the output voltage with
respect to ground for any given input voltage applied to termi-
nals AB is:
V
W
(
D
) =
D
/128
×
V
AB
+
V
B
(1)
D
represents the current contents of the internal UP/DOWN
counter.
Operation of the digital potentiometer in the divider mode re-
sults in more accurate operation over temperature. Here the
output voltage is dependent on the ratio of the internal resistors,
not the absolute value, therefore, the drift improves to 20 ppm/
°
C.
APPLICATIONS INFORMATION
The negative-edge sensitive CLK pin does not contain any
internal debounce circuitry. This standard CMOS logic input
responds to fast negative edges and needs to be debounced
externally with an appropriate circuit designed for the type of
switch closure device being used. Good performance results at
the CLK input pin when the negative logic transition has a
minimum slew rate of 1 V/
μ
s. A wide variety of standard circuits
can be used such as a one-shot multivibrator, Schmitt Triggered
gates, cross coupled flip-flops, or RC filters to drive the CLK
pin with uniform negative edges. This will prevent the digital
potentiometer from skipping output codes while counting due to
switch contact bounce.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD522-00E | 功能描述:SENSOR MAG SW 40G CROS AX 8-MSOP 制造商:nve corp/sensor products 系列:AD 包裝:管件 零件狀態(tài):有效 功能:全極開(kāi)關(guān) 技術(shù):霍爾效應(yīng) 極化:任意一種 感應(yīng)范圍:±5mT 跳閘，±2.5mT 釋放 測(cè)試條件:-40°C ~ 125°C 電壓 - 電源:4.5 V ~ 30 V 電流 - 電源（最大值）:4.5mA 電流 - 輸出（最大值）:20mA 輸出類(lèi)型:開(kāi)路集電極 特性:- 工作溫度:-40°C ~ 125°C（TA） 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商器件封裝:8-MSOP 標(biāo)準(zhǔn)包裝:1,000 |
| AD522-02E | 功能描述:SENSOR MAG SW 40G CROS AXS 8SOIC 制造商:nve corp/sensor products 系列:AD 包裝:管件 零件狀態(tài):有效 功能:全極開(kāi)關(guān) 技術(shù):霍爾效應(yīng) 極化:任意一種 感應(yīng)范圍:±5mT 跳閘，±2.5mT 釋放 測(cè)試條件:-40°C ~ 125°C 電壓 - 電源:4.5 V ~ 30 V 電流 - 電源（最大值）:4.5mA 電流 - 輸出（最大值）:20mA 輸出類(lèi)型:開(kāi)路集電極 特性:- 工作溫度:-40°C ~ 125°C（TA） 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:8-SOIC 標(biāo)準(zhǔn)包裝:1,000 |
| AD5220B10 | 制造商:Analog Devices 功能描述: |
| AD5220BN10 | 制造商:Analog Devices 功能描述:Digital Potentiometer 128POS 10KOhm Single 8-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:7-BIT RDAC WITH UP/DWN CONTROL - Bulk 制造商:Analog Devices 功能描述:IC DIGITAL POT 10K 5220 DIP8 |
| AD5220BN100 | 制造商:Analog Devices 功能描述:Digital Potentiometer 128POS 100KOhm Single 8-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:7-BIT RDAC WITH UP/DWN CONTROL - Bulk 制造商:Analog Devices 功能描述:IC DIGITAL POT 100K 5220 DIP8 |
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