lm3303j National Semiconductor Corporation, lm3303j Datasheet - Page 5

• Manufacturer Part Number: lm3303j
• Description: Quad Operational Amplifiers
• Manufacturer: National Semiconductor Corporation

Typical Applications
f
BW
R in kX
C in mF
Q
C1
R1
If source impedance is high or varies filter may be preceded with voltage
follower buffer to stabilize filter parameters
Design example
given Q
f
o
o
e
e
e
e
e
e
BW
2
center frequency
C2
R2
f
Let R1
then R3
q
o
Bandwidth
1
RC
e
k
e
e
Q
3
R3
C
10
for f
5 f
1 R3
e
e
Multiple Feedback Bandpass Filter
e
R
C
e
o
o
5
3
R2
e
e
e
e
e
215 kX
9(5)
e
1 kHz
1 kHz
16 kX
0 01 mF
9Q
e
1 6 nF
2
Wein Bridge Oscillator
2
10 kX
b
b
10
1
(
Using scaling factors in these expressions
TL H 10064 – 4
TL H 10064 – 5
5
V
V
H
V
R2
R5
R1
R2
Gain
A
A
IL
IH
OUT
V
V
e
e
e
e
A
e
e
e
R1
e
e
1
11 (as shown)
R6
R7
R1
R1
R4
R5
R6
R5
a
R1
a
C(1
R1
R1
for best CMRR
a
a
R2
R1
R2

High Impedance Differential Amplifier
R2
R2
a
AC Coupled Non-Inverting Amplifier
1
(V
a
a
(V
(V
OH
a
OL
OH
2R1
Comparator with Hysteresis
R3
b
b)(V2
b
b
V
J
V
OL
V
REF
e
REF
b
)
C (1
V1)
)
)
a
a
a
V
V
REF
REF
a
a
b)
TL H 10064 – 6
TL H 10064 – 7
TL H 10064 – 9