MC33171 MC33172 MC33174
Figure 9. AC Coupled Noninverting Amplifier
Figure 10. AC Coupled Inverting Amplifier
with Single +5.0 V Supply
with Single +5.0 V Supply
V
CC
2.2 k
510 k
V
CC
100 k
3.6 Vpp
3.8 Vpp
V
0
V
0
O
O
100 k
C
in
C
O
+
–
100 k
V
C
O
O
+
–
10 k
V
O
100 k
= 101
RL
100 k
V
in
10 k
C
in
RL
100 k
1.0 k
V
in
A
V
A
V
= 10
BW ( –3.0 dB) = 20 kHz
BW ( –3.0 dB) = 200 kHz
Figure 11. DC Coupled Inverting Amplifier
Maximum Output Swing with Single
+5.0 V Supply
Figure 12. Offset Nulling Circuit
V
CC
100 k
V
CC
50 k
7
3
2
+
4.7 k
R
6
5
L
+
–
V
–
O
1
4
10 k
1.0 M
100 k
V
4.2 Vpp
EE
V
2.5 V
O
V
in
Offset Nulling range is approximately
a 10 k potentiometer, MC33171 only.
±80 mV with
A
= 10
V
BW ( –3.0 dB) = 200 kHz
Figure 13. Active High–Q Notch Filter
Figure 14. Active Bandpass Filter
V
CC
V
≥
0.2 Vdc
16 k
in
f
= 30 kHz
o
C
R3
2.2 k
Q = 10
= 1.0
–
+
0.047
16 k
R
V
R1
1.1 k
H
O
O
V
in
–
R
0.01
V
in
V
O
C
C
+
0.047
R2
5.6 k
f
f
= 1.0 kHz
o
0.4
2C
0.02
2C
0.02
2R
32 k
R1 R3
V
R3
CC
1
=
R2 =
Then:
R1 =
R3 =
2
o
4Q R1 –R3
2 H
O
4
π RC
Q
f
o
GBW
Q
o
Given f = center frequency
o
< 0.1
A
= Gain at center frequency
π
f C
o
o
Choose Value f , Q, A , C
o
o
For less than 10% error for operational amplifier, where f and GBW are expressed in Hz.
o
7
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA [ MOTOROLA ]
