12.5 Gb/s high-gain receive limiter amplifier
iT3018 12.5 Gb/s High-Gain RX Limiter Amplifier
Description
The iT3018 is a limiting amplifier for use as a post amplifi...
Description
iT3018 12.5 Gb/s High-Gain RX Limiter Amplifier
Description
The iT3018 is a limiting amplifier for use as a post amplifier in OC-192 and STM-64 optical receivers. Differential signals as small as +/-6 mVpp can be amplified to 2.2 Vpp differential. The device includes offset correction and output voltage control. Both AC and DC coupling are allowed at both input and output. The high sensitivity of the iT3018 allows the device to be used at the output of a transimpedance amplifier.
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Features
3 dB bandwidth: 10 GHz Differential gain: 50 dB Saturated output: 1.1 Vpp, each output into 50 ohm Input sensitivity 3.0 mVpp at BER<1E-12 Single bias supply: -5.2 V Power consumption: 624 mW Bias current: 120 mA DC offset correction Amplitude Voltage Control Low RMS Jitter Low-cost JEDEC QFP-N (MO-220) package
Absolute Maximum Ratings
S ymbol
Vee1,2 Vd Vm Tch Tstg
Parameters/conditions
Pow er supply voltage Applied voltage at data input (differential) Applied voltage at data input (single ended) Maximum channel temperature Storage temperature
Min.
-8
Max.
0 3 1.5 5 150
Units
V V V mA
o
Ioffset(+),(-) Offset control current -65
C
150
°C
Recommended Operating Conditions
Sym bol Tc Vee1 Vee2 Iee1+Iee2 Voffset (+) Voffset (-) Vctrl Vd Vm Vindc R
Param eters/conditions Operating temperature range (Tcase) Pow er supply voltage Pow er supply voltage Total bias supply current Offset control voltage Offset control voltage Amplitude voltage co...
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