10-Gb/s limiting amplifier and laser/modulator driver in 0.18-/spl mu/m CMOS technology |
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Authors: | Galal S Razavi B |
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Affiliation: | Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA; |
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Abstract: | A limiting amplifier incorporates active feedback, inductive peaking, and negative Miller capacitance to achieve a voltage gain of 50 dB, a bandwidth of 9.4 GHz, and a sensitivity of 4.6 mV/sub pp/ for a bit-error rate of 10/sup -12/ while consuming 150 mW. A driver employs T-coil peaking and negative impedance conversion to achieve operation at 10 Gb/s while delivering a current of 100 mA to 25-/spl Omega/ lasers or a voltage swing of 2 V/sub pp/ to 50-/spl Omega/ modulators with a power dissipation of 675 mW. Fabricated in 0.18-/spl mu/m CMOS technology, both prototypes operate with a 1.8-V supply. |
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