Z. Lao et al., DC 30GHZ BANDWIDTH AND 36DB GAIN LIMITING AMPLIFIER FOR 40GBIT S OPTICAL-TRANSMISSION SYSTEMS/, Electronics Letters, 33(25), 1997, pp. 2139-2141
A monolithic limiting amplifier for high speed optical transmission sy
stems has been fabricated using a 0.2 mu m enhancement/depletion AlGaA
s/GaAs-HEMT (f(T) = 60/55 GHz). The IC has a bandwidth of 30 GHz with
a differential gain of 36dB. The circuit features a differential confi
guration with active source followers to increase bandwidth. The power
consumption is 700mW using a single supply voltage of -4V.