參數(shù)資料
型號: IL300
廠商: VISHAY SEMICONDUCTORS
元件分類: 光電耦合器
英文描述: Optocoupler DC-IN 1-CH Linear Photovoltaic DC-OUT 8-Pin PDIP-8A
中文描述: High Linearity Optocouplers High Gain Wide Bandwidth Linear
文件頁數(shù): 9/11頁
文件大?。?/td> 186K
代理商: IL300
IL300
www.vishay.com
Vishay Semiconductors
Rev. 1.7, 23-Sep-11
9
Document Number: 83622
For technical questions, contact:
optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc91000
Fig. 16 - Amplitude and Phase Power Supply Control
The same procedure can be used to design isolation
amplifiers that accept bipolar signals referenced to ground.
These amplifiers circuit configurations are shown in
figure 17. In order for the amplifier to respond to a signal that
swings above and below ground, the LED must be pre
biased from a separate source by using a voltage reference
source (V
ref1
). In these designs, R3 can be determined by the
following equation.
V
I
P1
Fig. 17 - Non-inverting and Inverting Amplifiers
iil300_21
dB
Phase
P
10
3
10
4
10
5
10
6
2
0
- 2
- 4
- 6
- 8
45
0
- 45
- 90
- 135
- 180
F - Frequency (Hz)
A
R3
-----------
V
K1I
Fq
--------------
=
=
TABLE 2 - OPTOLINEAR AMPLIEFIERS
AMPLIFIER
INPUT
OUTPUT
GAIN
OFFSET
V
x R4 x K3
Non-inverting
Inverting
Inverting
Non-inverting Non-inverting
Inverting
Inverting
Non-inverting
Non-inverting
Inverting
iil300_22
Vcc
20 pF
4
1
2
3
4
8
7
6
5
+ Vref2
R5
R6
7
2
4
3
Vo
R4
R3
- Vref1
Vin
R1
R2
3
7
6
+
+Vcc
100
Ω
6
IL 300
2
- Vcc
- Vcc
Vcc
- Vcc
+
Vcc
20 pF
4
1
2
3
4
8
7
6
5
+ Vref2
7
2
4
3
Vout
R4
R3
+ Vref1
Vin
R1
R2
3
7
6
+
+ Vcc
100
Ω
6
2
Vcc
Vcc
- Vcc
+
Vcc
Non-inverting input
Non-inverting output
Inverting input
Inverting output
IL 300
- Vcc
Vcc
V
IN
-------------
)
------------------------------------------
=
V
ref2
-----------------------------------------
=
V
IN
-------------
)
-------------------------------------------------------------------------
=
V
ref2
- V
x R4 x R5 + R6
x K3
---------------------------------------------------------------------------------
=
V
IN
-------------
)
-----------------------------------------------------------------------------
=
V
ref2
V
x R4 x R5 + R6
)
x K3
-----------------------------------------------------------------------------
=
V
IN
-------------
)
------------------------------------------
=
V
ref2
- V
x R4 x K3
---------------------------------------------
=
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