Datasheet

     
  
  
SLOS081G − FEBRUARY 1977 − REVISED SEPTEMBER 2004
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
Output BOutput A
+
−
1.5 kΩ V
CC−
43 kΩ
220 pF
43 kΩ
V
CC+
30 kΩ
V
CC+
43 kΩ
V
CC−
+
−
16 kΩ
43 kΩ
Input
220 pF 220 pF
16 kΩ
+
−
V
CC−
V
CC+
30 kΩ
V
CC+
43 kΩ
220 pF
43 kΩ
V
CC−
+
−
1.5 kΩ
1/4
TL084
2 kHz/div
Second-Order Bandpass Filter
f
o
= 100 kHz, Q = 30, GAIN = 4
2 kHz/div
Cascaded Bandpass Filter
f
o
= 100 kHz, Q = 69, GAIN = 16
Output A
Outpu
t
B
1/4
TL084
1/4
TL084
1/4
TL084
Figure 27. Positive-Feedback Bandpass Filter