Abstract
This paper presents a 10 Gbit/s SiGe optical receiver analog front-end (AFE) using input parasitic capacitance immunization technique to enhance bandwidth performance. The broadband technique can strongly reduce the total input capacitance of the optical receiver AFE. The 10 Gbit/s optical receiver AFE was realized in a standard 0.35 mm SiGe bipolar junction transistor complementary metal oxide semiconductor (BiCMOS) process. The measured performance results of the receiver AFE demonstrate a differential output swing of 600mV under 50ω instrument loads, a peak-to-peak jitter (jitter p-p ) of 28.28 ps, a root-mean-square jitter (jitter rms ) of 4.47 ps, and an input sensitivity of -12:1 dBm, respectively, at a bit error ratio (BER) of 10 -12 under a 10 Gbit/s 2 31 - 1 pseudo random binary sequences (PRBS) test pattern. The total circuit dissipates 180mW under a 3V supply, and the chip size is 700 × 760 mm 2 . © 2009 The Japan Society of Applied Physics.