參數(shù)資料
型號(hào): OPT301M
英文描述: INTEGRATED PHOTODIODE AND AMPLIFIER
中文描述: 光電二極管與放大器集成
文件頁(yè)數(shù): 9/11頁(yè)
文件大小: 163K
代理商: OPT301M
6
9
OPT301
FIGURE 5. “T” Feedback Network.
FIGURE 7. Differential Light Measurement.
FIGURE 8. Current Output Circuit.
Bandwidth is reduced to
2.8kHz due to additional
photodiode capacitance.
FIGURE 6. Summing Output of Two OPT301s.
1M
OPT301
3
40pF
75
2
8
5
4
1
V–
λ
V+
R
1
19k
R
F
R
2
1k
V
O
= R
D
R
F
2
1
+ R
2
Advantages: High gain with low resistor values.
Less sensitive to circuit board leakage.
Disadvantage: Higher offset and noise than by using high
value for R
F
.
1M
OPT301
3
40pF
75
2
8
5
4
1
R
1
1k
–15V
λ
+15V
R
F
I
D
I
O
5mA
I
O
= I
D
1 + R
F
R
1
1M
OPT301
3
40pF
75
2
8
5
4
1
NC
λ
R
F
1M
OPT301
3
40pF
75
2
8
5
4
1
V
O
V–
λ
V+
R
F
This OPT301 used
as photodiode, only.
NC
V
O
= (I
D2
I
D1
)
R
F
I
D1
I
D2
1M
OPT301
3
40pF
75
2
8
5
4
1
V
O
= I
D1
R
F1
+ I
D2
R
F2
V–
λ
V+
R
F1
1M
OPT301
3
40pF
75
2
8
5
4
1
V
O
= I
D2
R
F2
V–
λ
V+
R
F2
Max linear
input voltage
(V+) –0.6V typ
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