TL084 Datasheet, PDF (8/11 Pages) STMicroelectronics – GENERAL PURPOSEJ-FET QUAD OPERATIONAL AMPLIFIERS

TL084 - TL084A - TL084B
TYPICAL APPLICATIONS (continued)
POSITIVE FEEDBACK BANDPASS FILTER
Input
43k Ω
22 0p F
43k Ω
22 0pF
-
1/4
TL08 4
16k Ω
43 k Ω
1 .5 k Ω
30k Ω
-
1/4
TL08 4
43k Ω
22 0p F
220pF
43 k Ω
-
1/4
TL 08 4
16k Ω
43k Ω
1 .5 k Ω
30k Ω
-
1/4
TL 084
Output B
Output A
Ground
OUTPUT A
OUTPUT B
SECOND ORDER BANDPASS F ILT ER
fo = 100kHz ; Q = 30 ; Gain = 4
CASCADED BANDPASS F IL TER
fo = 100kHz ; Q = 69 ; Gain = 16
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