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CA3140 Ver la hoja de datos (PDF) - Intersil

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CA3140 Datasheet PDF : 22 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Block Diagram
CA3140, CA3140A
2mA
+
3
INPUT
-
2
BIAS CIRCUIT
CURRENT SOURCES
AND REGULATOR
200µA
1.6mA
200µA
A 10
A
10,000
C1
12pF
51
8
OFFSET
NULL
4mA
7 V+
2µA 2mA
A1
6 OUTPUT
STROBE
4 V-
Schematic Diagram
BIAS CIRCUIT
D1
Q1
Q6
Q7
R1
8K
Q8
D2
INVERTING
INPUT
2
-
NON-INVERTING
+
3
INPUT
INPUT STAGE
Q2
Q5
SECOND STAGE OUTPUT STAGE DYNAMIC CURRENT SINK
7 V+
D7
R13
5K
Q3
R9
Q20
50
Q4
R10
1K
D8
R14
Q19 R11
20
R12
20K
12K
D3
D4
D5
Q17
Q21
R8
1K Q18
6 OUTPUT
Q9 Q10
R2
500
R3
500
Q11
Q12
R4
500
R5
500
C1
12pF
Q14
Q15
Q13
R6
50
Q16
D6
R7
30
5
1
8
4
OFFSET NULL
STROBE
V-
NOTE: All resistance values are in ohms.
4

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