LM324WN Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
LM324WN Datasheet PDF : 16 Pages
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Typical Single - Supply Applications
LM124W-LM224W-LM324W
Figure 20. Activer bandpass filter
Figure 21. High input Z, DC differential
amplifier
R1
100kW
C1
330pF
For R-----1-- = R-----4--
R2 R3
(CMRR depends on this resistor ratio match)
e1
R3
10kW
1/4
LM124W
R4
10MW
C2
330pF
R6
470kW
R5
470kW
1/4
LM124W
R1
100kW
R2
100kW
R3
100kW
1/4
R4
100kW
eO
+V1
LM124W
1/4
LM124W
Vo
1/4
LM124W
R7
100kW
+V2
Fo = 1kHz
Q = 50
Av = 100 (40dB)
R8
100kW
C3
10mF
V CC
e0
⎛
⎝
1
+
RR-----43--⎠⎞
(e2 - e1)
As shown e0 = (e2 - e1)
Figure 22. Using symmetrical amplifiers to
reduce input current (general
concept)
1/4
II
I B LM124W
eo
eI
IB
2N 929
IB
1.5MW
0.001mF
IB
3MW
IB
1/4
LM124W
Aux. amplifier for input
current compensation
10/16
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