MC34071,2,4,A MC33071,2,4,A, NCV33074A
(Typical Single Supply Applications V
CC
= 5.0 V)
V
CC
5.1 M
V
O
0
3.7 V
pp
V
CC
20 k
C
in
1.0 M
+
MC34071
0
3.7 V
pp
100 k
C
O
V
O
68 k
C
in
100 k
10 k
R
L
A
V
= 101
BW (−3.0 dB) = 45 kHz
10 k
36.6 mV
pp
V
in
1.0 k
+
MC34071
−
−
C
O
V
O
10 k
R
L
V
in
370 mV
pp
100 k
A
V
= 10 BW (−3.0 dB) = 450 kHz
Figure 38. AC Coupled Noninverting Amplifier
Figure 39. AC Coupled Inverting Amplifier
V
O
2.63 V
4.75 V
pp
91 k
V
CC
5.1 k
R
L
5.1 k
100 k
+
MC34071
2.5 V
V
O
0
1.0 M
V
in
+
MC34071
−
0 to 10,000 pF
MC54/74XX
−
V
in
A
V
= 10
BW (−3.0 dB) = 450 kHz
Cable
TTL Gate
Figure 40. DC Coupled Inverting Amplifier
Maximum Output Swing
Figure 41. Unity Gain Buffer TTL Driver
R1
V
in
V
in
≥
0.2 Vdc
R
V
in
16 k
C
0.01
R
16 k
1.1 k
R2
5.6 k
C
0.047
C
0.047
R3
2.2 k
−
MC34071
+
V
O
f
o
= 30 kHz
H
o
= 10
H
o
= 1.0
V
CC
−
MC34071
V
O
Given f
o
= Center Frequency
A
O
= Gain at Center Frequency
Choose Value f
o
, Q, A
o
, C
Then:
f
o
= 1.0 kHz
f
o
=
1
4pRC
R3 =
Q
R3
R1 =
2H
o
pf
o
C
0.4 V
CC
+
R2 =
32 k
2.0 R
R1 R3
4Q
2
R1−R3
Q
o
f
o
GBW
< 0.1
For less than 10% error from operational amplifier
where f
o
and GBW are expressed in Hz.
GBW = 4.5 MHz Typ.
2.0 C
0.02
2.0 C
0.02
Figure 42. Active High−Q Notch Filter
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Figure 43. Active Bandpass Filter
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