參數(shù)資料
型號: OPT201
英文描述: OPT201 - DISCONTINUED PRODUCT. No longer recommended for new design.
中文描述: OPT201 -已停產(chǎn)產(chǎn)品。不再推薦用于新設(shè)計。
文件頁數(shù): 10/11頁
文件大?。?/td> 183K
代理商: OPT201
10
OPT201
FIGURE 9. Single Power Supply Operation.
1M
OPT201
3
40pF
75
2
8
5
4
1
V
O
= I
D
R
F
V
Z
λ
V+
R
F
0.1μF
(pesudo-ground)
+
V
Z(1)
3.3V
NOTE: (1) Zener diode or other shunt regulator.
5k
FIGURE 10. Output Filter to Reduce Noise.
FIGURE 11. Differential Light Measurement.
1M
OPT201
40pF
75
2
8
3
5
4
1
V
O
V–
λ
V+
R
F1
10nF
Output filter reduces
output noise from
250μV to 195μV.
1M
OPT201
3
40pF
75
2
8
5
4
1
V
O1
= I
D1
R
F1
V–
λ
V+
R
F1
1M
OPT201
3
40pF
75
2
8
5
4
1
V
O2
= I
D2
R
F2
V–
λ
V+
R
F2
100k
INA106
6
V
O
= 10 (V
O2
– V
O1
)
100k
10k
10k
1
5
3
2
G = 10
Difference Measurement
3
10
7
V
O
= K log
LOG100
V
O1
V
O2
Log of Ratio Measurement
(Absorbance)
14
1
100k
100k
1nF
C
C
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