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CA3140 데이터 시트보기 (PDF) - Intersil
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CA3140
4.5MHz, BiMOS operational amplifier with MOSFET input/bipolar output
Intersil
CA3140 Datasheet PDF : 22 Pages
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Block Diagram
CA3140, CA3140A
2mA
+
3
INPUT
-
2
BIAS CIRCUIT
CURRENT SOURCES
AND REGULATOR
200
µ
A
1.6mA
200
µ
A
A
≈
10
A
≈
10,000
C
1
12pF
51
8
OFFSET
NULL
4mA
7 V+
2
µ
A 2mA
A
≈
1
6 OUTPUT
STROBE
4 V-
Schematic Diagram
BIAS CIRCUIT
D
1
Q
1
Q
6
Q
7
R
1
8K
Q
8
D
2
INVERTING
INPUT
2
-
NON-INVERTING
+
3
INPUT
INPUT STAGE
Q
2
Q
5
SECOND STAGE OUTPUT STAGE DYNAMIC CURRENT SINK
7 V+
D
7
R
13
5K
Q
3
R
9
Q
20
50
Ω
Q
4
R
10
1K
D
8
R
14
Q
19
R
11
20
Ω
R
12
20K
12K
D
3
D
4
D
5
Q
17
Q
21
R
8
1K
Q
18
6 OUTPUT
Q
9
Q
10
R
2
500
Ω
R
3
500
Ω
Q
11
Q
12
R
4
500
Ω
R
5
500
Ω
C
1
12pF
Q
14
Q
15
Q
13
R
6
50
Ω
Q
16
D
6
R
7
30
Ω
5
1
8
4
OFFSET NULL
STROBE
V-
NOTE: All resistance values are in ohms.
4
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