lm2902yd STMicroelectronics, lm2902yd Datasheet - Page 10

• Manufacturer Part Number: lm2902yd
• Description: Low Power Quad Operational Amplifiers
• Manufacturer: STMicroelectronics

Typical single-supply applications
5
10/16
Figure 19. AC coupled inverting amplifier
Figure 21. Non-inverting DC gain
Figure 23. Active bandpass filter
e
e
1
I
~
10kΩ
V
R1
C
CC
10k Ω
R3
I
10k Ω
100kΩ
10k Ω
R1
R2
Fo = 1kHz
Q = 50
Av = 100 (40dB)
10 μ F
C1
Typical single-supply applications
LM2902
1/4
100k Ω
LM2902
1M Ω
LM2902
100kΩ
R1
LM2902
R2
100k Ω
1/4
1/4
R3
1/4
10MΩ
R
6.2kΩ
R4
f
R
330pF
B
C2
470kΩ
100kΩ
R6
R8
(as shown A = -10)
A = -
e
V
C
O
o
R1
R
+5V
330pF
0
e
f
C1
LM2902
10k Ω
o
A
0
R
1/4
V
V
L
10 μ F
= 1 +
C3
(As shown
e
I
(mV)
R2
R1
470kΩ
100kΩ
R5
R7
A
V
= 101)
2V
e
V
PP
O
CC
Figure 20. AC coupled non-inverting amplifier
Figure 22. DC summing amplifier
Figure 24. High input Z adjustable gain DC
0.1 μ F
e
C1
2
e
2k Ω
e
1
R2
If R1 = R5 and R3 = R4 = R6 = R7
eo = [ 1 +
As shown eo = 101 (e2 - e1)
I
~
e
e
e
e
100k Ω
C
1
2
3
4
10 μ F
R1
I
2R1
R2
1M Ω
C2
R3
instrumentation amplifier
100kΩ
100kΩ
100kΩ
100kΩ
Gain adjust
] (e2 - e1)
eo = e1 + e2 - e3 - e4
where (e1 + e2)
to keep eo
LM2902
LM2902
LM2902
1/4
1/4
100k Ω
100k Ω
1MΩ
1/4
100kΩ
R1
R5
R2
100kΩ
6.2kΩ
R5
R4
R
≥
B
0V
100kΩ
V
CC
≥
(e3 + e4)
(as shown A = 11)
A = 1 + R2
100k Ω
100k Ω
C
LM2902
V
R6
R3
o
1/4
100kΩ
e
R1
10k Ω
o
0
R
V
L
LM2902
100k Ω
R7
1/4
100k Ω
e
R4
O
LM2902
2V
e
PP
O