Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsLinear ICsLinear IC - Op-amp J-FET SO 14

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TL084 - TL084A - TL084B

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TYPICAL APPLICATIONS (continued)

POSITIVE FEEDBACK BANDPASS FILTER

OUTPUT A OUTPUT B

-

-

TL084

1/4

220pF

43k

Ω

Input

1.5k

Ω

43k

Ω

220pF

43k

Ω

16k

Ω

TL084

1/4

30k

Ω

Output A

-

TL084

1/4

1.5k

Ω

220pF

43k

Ω

220pF

43k

Ω

-

TL084

1/4

43k

Ω

16k

Ω

30k

Ω

Output B

Ground

SECOND ORDER BANDPASS FILTER

fo = 100kHz; Q = 30; Gain = 4

CASCADED BANDPASS FILTER

fo = 100kHz; Q = 69; Gain = 16