參數(shù)資料
型號: OPT209
廠商: Texas Instruments, Inc.
英文描述: Photodiode With On-Chip Amplifier(帶片內(nèi)放大器的光電二極管)
中文描述: 光電二極管帶有片上放大器(帶片內(nèi)放大器的光電二極管)
文件頁數(shù): 9/11頁
文件大小: 159K
代理商: OPT209
9
OPT209
FIGURE 5. “T” Feedback Network.
FIGURE 7. Differential Light Measurement.
FIGURE 8. Current Output Circuit.
Bandwidth is reduced to
11kHz due to additional
photodiode capacitance.
FIGURE 6. Summing Output of Two OPT209s.
1M
OPT209
3
10pF
175
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
OPT209
3
10pF
175
2
8
5
4
1
V
O
= I
D1
R
F1
+ I
D2
R
F2
V–
λ
V+
R
F1
1M
OPT209
3
10pF
175
2
8
5
4
1
V
O
= I
D2
R
F2
V–
λ
V+
R
F2
Max linear
input voltage
(V+) –0.6V typ
1M
OPT209
3
10pF
175
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
OPT209
3
10pF
175
2
8
5
4
1
NC
λ
R
F
1M
OPT209
3
10pF
175
2
8
5
4
1
V
O
V–
λ
V+
R
F
This OPT209 used
as photodiode, only.
NC
V
O
= (I
D2
I
D1
)
R
F
I
D1
I
D2
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