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參數(shù)資料
| 型號： | foa1251 |
| 廠商： | SIEMENS AG |
| 元件分類： | 運動控制電子 |
| 英文描述： | 2.5 Gbit/s Transimpedance Amplifier(互阻抗放大器) |
| 中文描述： | 2.5 Gbit / s的阻放大器（互阻抗放大器） |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 194K |
| 代理商： | FOA1251 |
FOA1251A1
FOA1252A1
Semiconductor Group
4
Rev. 2, February 1999
Note: 1) Data rate: 2.5 Gbit/s; data sequence: PRBS 2
23
-1
2) Responsitivity of photodetector =
0.8 A/W
2) Generated noise on power supply: sine curve, 100 mV
pp
(see application note b)
AC/DC Characteristics
Conditions:
T
amb
= +25
°
C,
V
CC
= +5.0 V,
C
external
= 0.85 pF
Parameter
Symbol
Limit Values
min.
Unit
Remarks
typ.
47
max.
57
Supply current
I
VCC
mA
Input voltage
Input current
Input current before
clipping
V
IN
I
IN
I
IN,CL
+1.65
V
2200
μ
A
pp
μ
A
pp
(Note 1)
30
Input resistance
Input sensitivity
Optical overload
R
IN
P
IN
P
OVL
40
-23.5
+1.5
dBm BER < 10
–9
(Note 1)
dBm BER < 10
–9
(Note 1, 2)
Transimpedance
Output voltage swing
(Q
+
- Q
–
)
Bandwidth (–3 dB)
R
T
V
OUT
26
0.78
k
Vpp
differential
into 2
×
50
0.6
1.1
f
3db
1600
MHz
internally connected
to
V
CC
(Q
+
+ Q
–
)/2
Output resistance
R
out
48
60
72
Output voltage
VCM
OUT
V
CC
- 0.6
V
Output pattern jitter
(Note 1)
Power supply rejection
ratio
Bias resistance
Bias voltage
Low frequency cutoff
t
j,P
15
45
35
ps
ps
dB
50
μ
A
pp
<
I
IN
< 500
μ
A
pp
500
μ
A
pp
<
I
IN
< 2 mA
pp
f < 10 MHz
(Note 3)
PSRR
R
BIAS
V
BIAS
f
3db, low
400
500
+4.2
65
600
V
kHz AC-coupled outputs
(via 22 nF)
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