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10-Gb/s limiting amplifier and laser/modulator driver in 0.18-μm CMOS technology

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2 Author(s)
Galal, S. ; Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA ; Razavi, B.

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 mVpp for a bit-error rate of 10-12 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-Ω lasers or a voltage swing of 2 Vpp to 50-Ω modulators with a power dissipation of 675 mW. Fabricated in 0.18-μm CMOS technology, both prototypes operate with a 1.8-V supply.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:38 ,  Issue: 12 )