Equivalent schematic – Philips SA741C User Manual

Page 4

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Philips Semiconductors

Product specification

µ

A741/

µ

A741C/SA741C

General purpose operational amplifier

1994 Aug 31

4

EQUIVALENT SCHEMATIC

NON–INVERTING

INPUT

Q1

Q8

Q2

Q3

Q4

Q7

Q5

Q6

R1
1K

Ω

R3
50K

Ω

R2
1K

Ω

Q9

Q13

R5
39K

Ω

Q10

Q11

Q22

V+

Q14

R9
25

Ω

OUTPUT

R10
50

Ω

Q20

Q16

Q17

Q18 Q15

V–

R11
50

Ω

R12
50k

Ω

R7
4.5

Ω

R8
7.5K

Ω

R4
5k

Ω

30pF

Q12

OFFSET NULL

INVERTING INPUT

OFFSET NULL

SL00096

Figure 2. Equivalent Schematic

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