SE1030W
LightCharger™ 2.5 Gb/s Transimpedance Amplifier
Final
AC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
BW (3dB) Small Signal Bandwidth at –3dB point
1.8
2.4
Tz
Differential Transimpedance (50 Ω on each output,
1.6
2.3
3.1
f = 100 MHz)
Dri
Input Data Rate
50
2500
Voutmax
Flf
Maximum Differential Output Voltage
Low Frequency Cut-off
300
5
lOL
Input Current before overload (2.5 Gb/s NRZ data)
2600
Pol
Optical Overload
+1.6
Nrms
Input Noise Current (in 2 GHz)
360
500
DC and AC electrical characteristics are specified under the following conditions:
Supply Voltage (VCC).........................................3.1 V to 3.5 V
Junction Temperature (Tj)..................................–40°C to 125°C
Load Resistor (RL)...............................................50 Ω AC coupled via 220 nF, for each output
Photodetector Capacitance (Cd).......................0.5 pF
Input bond wire inductance................................1 nH
Photodetector responsivity.................................0.9 A/W
Transimpedance (Tz) measured with 4 µA mean photocurrent
Unit
GHz
kΩ
Mb/s
mV pk-pk
kHz
µA pk-pk
dBm
nA rms
43-DST-01 § Rev 1.5 § May 24/02
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