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參數(shù)資料
| 型號： | FM20P3X |
| 英文描述： | Temperature Transducer/Sensor |
| 中文描述： | 溫度變送器/傳感器 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 507K |
| 代理商： | FM20P3X |
7
F
www.fairchildsemi.com
FM20 Rev. A.5
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The FM20 will handle sizable capacitive loads up to 300pF without
any special considerations. In an extremely noisy environment it
may be advisable to add some filtering to minimize noise in the
output voltage. It is also recommended that a 0.1
μ
F bypass
capacitor be added between the supply voltage and ground. This
is due to the instant current demand caused by switching CMOS
transistors. Normally it is unadvisable to put a sufficiently large
supply (particularly in portable electronics) to be able to handle the
dynamic currents of CMOS transistors. It is a much simpler
solution to use a bypass capacitor to sustain the supply voltage
during this short demand period.
In environments that are particularly noisy it may be necessary to
add a low-pass filter network to the output of the device. As shown
below, a 1
μ
F capacitor in addition to the output impedance of the
device and a 200
series resistor for a low-pass filter that will pass
the slow thermal time constant of the FM20, while filtering the
higher frequency noise. The response time of the FM20 can be
affected by this filter network, therefore values for C
FILTER
<
1500pF are recommended.
FM20 with Filter Network for Noisy Environments or
for Capacitive Loads Greater than 300pF
Resistor/Capacitor Combinations for Filter Network
R
FILTER
200
C
FILTER
1
μ
F
470
0.1
μ
F
680
0.01
μ
F
1000
1000pF
10k
100pF
100k
10pF
0.1
μ
F
Bypass
Cap
V
DD
GND
V
OUT
C
FILTER
R
FILTER
C
L
0.1
μ
F
Bypass
Cap
V
DD
GND
V
OUT
C
FILTER
R
FILTER
C
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FM20P5X | 功能描述:板上安裝溫度傳感器 analog Temp Sensor LV Neg Slope RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| FM20P5X_Q | 功能描述:板上安裝溫度傳感器 analog Temp Sensor LV Neg Slope RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| FM20S030Q (550838) | 制造商:AMETEK Technical and Industrial Products 功能描述:Flow Meter, Digital, 4-20mA Output, NEMA 1R Enclosure, for 6-30 SCFM Flow Rate |
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