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參數(shù)資料
| 型號(hào)： | S8745-01 |
| 廠(chǎng)商： | Hamamatsu Photonics |
| 英文描述： | Photodiode and preamp integrated with feedback resistance and capacitance |
| 中文描述： | 光電二極管和前置放大器的反饋電阻和電容集成 |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大?。?/td> | 117K |
| 代理商： | S8745-01 |
Si photodioe with preamp
S8745-01, S8746-01
Output noise voltage and NEP (noise equivalent power) characteristics allow you to check whether the device can detect the low-
level light you want to measure. Since NEP is given by the equation (1) as shown at the right, NEP at wavelengths other than
λ
p can
be easily calculated from Figure 1 and Figures 4.
Note) When S8745-01 and S8746-01 are used only with the internal current-to-voltage gain, it is recommended that the "-IN" lead (pin 6 for S8745-
01; pin 9 for S8746-01) be cut off to a short length in order to reduce the influence of external noise as much as possible.
Figure 4 NEP vs. frequency
KSPDB0237EA
KSPDB0238EA
Figure 3 Output noise voltage vs. frequency
KSPDB0235EA
NEP (f,
λ
) : NEP at frequency and wavelength to be detected
NEP (f,
λ
p): NEP at peak wavelength (See Figures 4)
G
I-V(f)
: Current-to-voltage conversion gain (See Figure 2)
Ssi (
λ
)
: Sensitivity of Si photodiode
S (
λ
)
: Sensitivity of S8745-01 and S8746-01 (See Figure 1.)
S (
λ
p)
: Sensitivity of S8745-01 and S8746-01 at peak wavelength, 0.5 V/nW
Vn (f)
: Output noise voltage (See Figure 3)
KSPDB0236EA
FREQUENCY (kHz)
[Typ. Ta=25
C, Vcc=±15 V, Cf=5 pF (built-in), R
L
=1 M
, dark state]
O
1
)
0.1
0.001
0.01
0.01
0.1
1
10
100
1
1000
100
10
S8745-01
+111 M
(EXTERNAL
CONNECTED)
+11 M
(EXTERNAL
CONNECTED)
+1 M
(EXTERNAL
CONNECTED)
FREQUENCY (kHz)
[Typ. Ta=25
C, Vcc=±15 V, Cf=5 pF (built-in), R
L
=1 M
, dark state]
O
1
)
0.1
0.001
0.01
0.01
0.1
1
10
100
1
1000
100
10
S8746-01+111 M
(EXTERNAL
CONNECTED)
+1 M
(EXTERNAL
CONNECTED)
+11 M
(EXTERNAL
CONNECTED)
FREQUENCY (kHz)
[Typ. Ta=25
C, Vcc=±15 V, Cf=5 pF (built-in), R
L
=1 M
, dark state,
l
=
l
p]
N
1
)
0.1
0.001
0.01
10
1
10
2
10
3
10
4
10
5
10
6
1
1000
100
10
S8745-01
+111 M
(EXTERNAL
CONNECTED)
+1 M
(EXTERNAL
CONNECTED)
+11 M
(EXTERNAL
CONNECTED)
FREQUENCY (kHz)
[Typ. Ta=25
C, Vcc=±15 V, Cf=5 pF (built-in), R
L
=1 M
, dark state,
l
=
l
p]
N
1
)
0.1
0.001
0.01
10
1
10
2
10
3
10
4
10
5
10
6
1
1000
100
10
S8746-01
+111 M
(EXTERNAL
CONNECTED)
+1 M
(EXTERNAL
CONNECTED)
+11 M
(EXTERNAL
CONNECTED)
S8745-01
S8746-01
S8745-01
S8746-01
NEP (f,
λ
) =
=
··· (1)
Vn (f)
G
I - V (f)
· Ssi (
λ
)
NEP(f,
λ
p) · S (
λ
p)
S (
λ
)
3
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