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參數(shù)資料
| 型號： | HA17301P |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 250000 SYSTEM GATE 1.5 VOLT FPGA |
| 中文描述： | 四路運算放大器 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 61K |
| 代理商： | HA17301P |
HA17301P
5
Inverting Amplifier
There are three bias techniques for biasing the inverting amplifier, the single power supply bias technique,
the NV
BE
bias technique, and the load voltage bias technique.
1. Single Power Supply Bias Technique
Figure 2 shows a common AC amplifier that is biased by the same power supply as the supply that
operates the amplifier.
Vout
R
2
500 k
Cin
R
1
50 k
0.1
μ
F
V
D
V
D
+
Vin
R
3
= 2R
2
1 M
V
+
I
+
+
Figure 2 Single Power Supply Bias Technique
=
R
2
R
1
Vout
Vin
(1)
2. NV
BE
Bias Technique
+
Cin
0.1
μ
F
R
1
100 k
R
3
Vin
82 k
V
RE
R
2
1 M
Vout
I
I
Figure 3 NV
BE
Bias Technique
This is the most useful application of an inverting AC amplifier. In this circuit, the input bias voltage
V
BE
for the inverting input is determined by the current that flows to ground through the resistor R
3
.
=
R
2
R
1
Vin
Vout
(2)
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