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參數(shù)資料
| 型號(hào)： | S8745-01 |
| 元件分類(lèi)： | 光敏二極管 |
| 英文描述： | PHOTO DIODE |
| 封裝： | HERMETIC SEALED, TO-5, 10 PIN |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大小： | 115K |
| 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
λp 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,
λp): NEP at peak wavelength (See Figures 4)
GI-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 (
λp)
: 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), RL=1 M
, dark state]
OUTPUT
NOISE
VOLTAGE
(Vrms/Hz
1/2
)
0.1
0.001
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), RL=1 M
, dark state]
OUTPUT
NOISE
VOLTAGE
(Vrms/Hz
1/2
)
0.1
0.001
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), RL=1 M
, dark state, l=lp]
NEP
(fW/Hz
1/2
)
0.1
0.001
0.01
101
102
103
104
105
106
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), RL=1 M
, dark state, l=lp]
NEP
(fW/Hz
1/2
)
0.1
0.001
0.01
101
102
103
104
105
106
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)
GI - V (f) Ssi (
λ)
NEP (f,
λp) S (λp)
S (
λ)
3
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