Features: `Single +3.3 V power supply
`Power dissipation = 110 mW (typ)
`Input noise current = 180 nA rms when used with a 0.7 pF detector
`Transimpedance gain = 4.0 k into a 50 load (differential)
`On-chip automatic gain control gives input current overload of 2.6 mA pk and max output voltage swing of 300 mV pk-pk
`Differential 50 outputs
`Bandwidth (-3 dB) = 1.2 GHz
`Wide data rate range = 50 Mb/s to 1.25 Gb/s
`Constant photodiode reverse bias voltage = 1.5 V (anode to input, cathode to VCC)
`Minimal external components, supply decoupling only
`Operating junction temperature range = -40°C to +125°C
Application·Gigabit-Ethernet systems, test equipment and modules
·OC-24 fibre optic modules and line termination
·Fibre Channel optical systemsSpecificationsThese are stress ratings only. Exposure to stresses beyond these maximum ratings may cause permanent damage to, or affect the reliability of the device. Avoid operating the device outside the recommended operating conditions defined below
|
Symbol |
Parameter |
Min |
Max |
Unit |
| VCC |
Supply Voltage |
-0.7 |
6.0 |
V |
| VIO |
Voltage at any input or output |
-0.5 |
VCC+0.5 |
V |
| IIO |
Current sourced into any input or output except TZ_IN |
-20 |
+20 |
mA |
| IIO |
Current sourced into pin TZ_IN |
-5 |
+5 |
mA |
| VESD |
Electrostatic Discharge (100 pF, 1.5 k) except TZ_IN |
-2 |
2 |
KV |
| VESD |
Electrostatic Discharge (100 pF, 1.5 k) pin TZ_IN |
-0.25 |
0.25 |
KV |
| Tstg |
Storage Temperature |
-65 |
150 |
|
DescriptionSiGe Semiconductor offers a portfolio of optical networking ICs for use in high-performance optical transmitter and receiver functions, from 155 Mb/s up to 12.5 Gb/s.
SiGe Semiconductor's SE1020W is a fully integrated, silicon bipolar transimpedance amplifier; providing wideband, low noise preamplification of signal current from a photodetector. It features differential outputs and incorporates an automatic gain control mechanism to increase dynamic range, allowing input signals up to 2.6 mA peak. A decoupling capacitor on the supply is the only external circuitry required. A system block diagram of the SE1020W is shown after the functional description, on page 3.
SE1020W Data Sheet
