MC34071,2,4,A MC33071,2,4,A, NCV33072,4,A
GENERAL ADDITIONAL APPLICATIONS INFORMATION VS = 15.0 V
R1
46.1 k
C2
0.02
C2
0.05
C1
1.0
-
R2
5.6 k
R1
560
R3
510
MC34071
C1
1.0
f = 100 Hz
o
R2
1.1 k
-
+
H = 20
o
MC34071
C1
0.44
f = 1.0 kHz
H = 10
o
o
+
H +0.5
o
Then: R1 =
R2 =
Choose: f , H , C1
o
o
Ǹ
pf C1
o
2
Choose: f , H , C2
o
o
Ǹ
2
Then: C1 = 2C2 (H +1)
o
2pf C1 (1/H +2)
o
o
Ǹ
2
R2
R2
C
R2 =
C2 =
R3 =
R1 =
4pf C2
o
H +1
o
H
H
o
o
Figure 56. Second Order Low−Pass Active Filter
Figure 57. Second Order High−Pass Active Filter
C *
F
V
O
= 10 V
Step
R
F
2.0 k
+
-
MC34071
V
O
R1
MC34071
V
O
-
R
L
+
I
V
in
R2
t = 1.0 ms
s
Uncompensated
to 1/2 LSB (8-Bits)
t = 2.2 ms
s
V
High Speed
DAC
R2
R1
O
R1
R1 +R2
Compensated
=
BW (-3.0 dB) = GBW
to 1/2 LSB (12-Bits)
V
in
SR = 13 V/ms
*Optional Compensation
SR = 13 V/ms
Figure 58. Fast Settling Inverter
Figure 59. Basic Inverting Amplifier
+
MC34071
V
O
-
V
in
+
V
in
R2
MC34071
V
O
R
L
-
R1
V
V
O
R2
R1
=
1 +
in
BW = 200 kHz
p
R1
V
O
= 20 V
pp
BW (-3.0 dB) = GBW
SR = 10 V/ms
R1 +R2
Figure 60. Basic Noninverting Amplifier
Figure 61. Unity Gain Buffer (AV = +1.0)
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15
ROCHESTER [ Rochester Electronics ]
