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參數(shù)資料
| 型號： | GM358 |
| 廠商： | American Power Management Inc. |
| 元件分類： | 運算放大器 |
| 英文描述： | DUAL OPERATIONAL AMPLIFIER |
| 中文描述： | 雙路運算放大器 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 167K |
| 代理商： | GM358 |
TYPICAL APPLICATIONS
-
+
GM358
VCC
50k
5.0k
10k
C
R
VO
Vref
Vref=
VCC
1
2
f=
O
For: f
= 1.0kHz
O
R = 16kW
C = 0.01F
1
2 RC
Figure 6. Wien Bridge Oscillator
1 / 2
-
+
GM358
1 / 2
-
+
GM358
1 / 2
-
+
GM358
1 / 2
e1
e2
R1
aR1
bR1
1
C R
1
C R
R
e0
e = C(1 + a + b) (e - e )
02
1
Figure 7. High Impedance Differential
Amplifier
-
+
GM358
VO
Vref
1 / 2
Vin
VOH
VO
Hysteresis
VL
IN
VH
IN
Vref
V L=
(V
- Vref) + Vref
IN
OL
V H=
(V
- vref) + Vref
IN
OL
H=
(V
- V
)
OH
OL
R1
R2 + R2
R1
R2 + R2
R1
R2 + R2
Figure 8. Comparator with Hysteresis
R1
R2
R3
-
+
GM358
VO
Vref
1 / 2
Vin
C0
C0 =10C
VCC
C
Given:
f = center frequency
0
A(f ) = gain center frequency
0
Choose value f , C
0
Then:
R3 =
R1 =
R2 =
For less than 10% error from operational amplifier.
< 0.1
Where f and BW are expressed in Hz.
0
If source impedance varies, filter may be preceded with voltage
follower buffer to stabilize filter parameter.
Q
p f C
0
R3
2 A(f )
0
R1 R3
2
4Q R1 -R2
Q f
00
BW
Figure 9. Multiple Feedback Bandpass Filter
-
+
GM358
1 / 2
R1*
0.1
IL
VL
R2
100
VO
R3
1k
RL
*(Increase R1 for IL small)
+
V
- 2
L
V
=
O
1V(I )
L
1A
Figure 10. Current Monitor
-
+
GM358
1 / 2
VO
+ VIN
V
= V
OIN
Figure 11. Voltage Follower
R2
R1
VOL
Vref =
VCC
1
2
G
M
3
5
8
7
A
MICROELECTRONICS
GM358
DUAL OPERATIONAL AMPLIFIER
Signal Conditioning
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