ICL7139CPL 데이터 시트보기 (PDF) - Intersil
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ICL7139CPL Datasheet PDF : 13 Pages
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ICL7139, ICL7149
VIN
0VAC - 400VAC
0Hz - 1000Hz
COM
20MΩ
100kΩ
50kΩ
V+ V-
20MΩ
11
4-
7
10
ICL7652
5+
2
8
1
0.1µF
0.1µF
1.0µF
100kΩ
V+ V-
11
4-
7
10
ICL7652
5+
2
8
1
0.1µF
0.1µF
43.2kΩ
5kΩ
12
FULL
SCALE
ADJUST
INT (V/Ω)
ICL7149
10
COMMON
FIGURE 6. AC VOLTAGE MEASUREMENT USING OPTIONAL AVERAGING CIRCUIT
VIN
0VAC - 400VAC
50Hz - 1000Hz
10MΩ
2.2µF
+
V+
2.2µF
+
1
7
3
2
6
AD736
5
4
8
+
10µF
5kΩ
12
FULL
SCALE
ADJUST
INT (V/Ω)
4.99kΩ
V-
V+
ICL7149
30kΩ
COM
10
COMMON
FIGURE 7. AC VOLTAGE MEASUREMENT USING OPTIONAL RMS CONVERTER CIRCUIT
3-40
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