IC741 데이터 시트보기 (PDF) - Unspecified

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IC741

Operational Amplifier

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2.5 Op-amp as integrator and differentiator

Figure 4: Circuits for setting up operational amplifier as integrator and differentiator respectively.

Operational amplifier can be setup as an integrator and differentiator using a capacitor, as shown in

Fig. 4.

In the case of an integrator, the output voltage will be

Vout(t)

=

Vout(0)

−

1

RC

t

Vi(t )dt

0

(9)

Various kinds of input waves can be given as input. The rectangular wave, for example, will produce

the following output:

Input

Output

In the case of a differentiator, the output voltage will be

Vout(t)

=

−RC

dVi

dt

.

(10)

5

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