LM2904DMR2G datasheet(9/14 Pages) ONSEMI

No de pièce	LM2904DMR2G

Description	Single Supply Dual Operational Amplifiers

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Fabricant	ONSEMI [ON Semiconductor]

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LM258, LM358, LM358A, LM2904, LM2904A, LM2904V, NCV2904, NCV2904V

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9

2

1

Vref =VCC

1

2

Figure 15. Function Generator

Figure 16. Multiple Feedback Bandpass Filter

For less than 10% error from operational amplifier.

If source impedance varies, filter may be preceded with voltage

follower buffer to stabilize filter parameters.

Where fo and BW are expressed in Hz.

Qo fo

BW

< 0.1

Given:

fo = center frequency

A(fo) = gain at center frequency

Choose value fo, C

Then:

R3 =

Q

p fo C

R3

R1 =

2 A(fo)

R1 R3

4Q2 R1 -R3

R2 =

+

-

+

-

+

Vref =VCC

Vref

f =

R1 + RC

4 CRf R1

R3 =

R2 R1

R2 + R1

R2

300 k

75 k

R3

R1

C

Triangle Wave

Output

Square

Wave

Output

VCC

R3

R1

R2

Vref

Vin

C

VO

CO

CO = 10 C

Rf

if,

1/2

LM358

Vref

1/2

LM358

1/2

LM358

100 k

Numéro de pièce similaire - LM2904DMR2G

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ON Semiconductor	LM2904DMR2G	137Kb / 14P	Single Supply Dual Operational Amplifiers July, 2004 ??Rev. 18
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LM2904DMR2G Fiches technique(PDF) 9 Page - ON Semiconductor

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