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參數資料
| 型號： | FM20 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Ultra-Low-Power Analog Temperature Sensor |
| 中文描述： | 超低功耗模擬溫度傳感器 |
| 文件頁數： | 5/9頁 |
| 文件大小： | 357K |
| 代理商： | FM20 |
PRODUCT SPECIFICATION
FM20
REV. 1.0.6 1/9/03
5
In environments that are particularly noisy it may be neces-
sary to add a low-pass filter network to the output of the
device. As shown below, a 1μF capacitor in addition to the
output impedance of the device and a 200
for a low-pass filter that will pass the slow thermal time con-
series resistor
stant 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
mended.
FILTER
< 1500pF are recom-
Figure 3. FM20 with Filter Network for Noisy Environments or for Capacitive Loads Greater than 300pF
Table 1. Resistor/Capacitor Combinations for Filter Network
R
FILTER
200
470
680
1000
10k
100k
C
FILTER
1μF
0.1μF
0.01μF
1000pF
100pF
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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