Title :
A Low Power 3.12Gbit/s/Channel Parallel Optical Receiver for Very Short Reach (VSR) Applications
Author :
Tang, Wei ; Plant, David V.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que.
Abstract :
A truly-differential transimpedance amplifier (TIA) for optical receiver front-ends based on common-gate topology is fabricated and tested. -16 dBm sensitivity is achieved for this inductorless TIA at 3.125 Gbit/s while drawing 3.7 mA current from a 1.2 V power supply. The channel power consumption is 22 mW including an input buffer (IB), a limiting amplifier (LA), and a current-mode-logic (CML) output buffer with a 400 mV peak-to-peak differential output swing. We present a method to convert pseudo-differential signals into truly-differential signals by using AC coupling techniques. Also a new method of measuring cross-talk power penalty with an on-chip pseudo-random-bit-sequence (PRBS) generator is introduced. The circuits are implemented in the IBM CMRF8SF-DM 0.13-mum complementary-metal-oxide-semiconductor (CMOS) process
Keywords :
CMOS integrated circuits; differential amplifiers; optical crosstalk; optical receivers; random number generation; random sequences; telecommunication channels; 0.13 micron; 1.2 V; 22 mW; 3.125 Gbit/s; 3.7 mA; AC coupling technique; CML buffer; CMOS process; IBM CMRF8SF-DM; TIA; VSR; channel power consumption; common-gate topology; cross-talk power; current-mode-logic; limiting amplifier; on-chip PRBS generator; parallel optical receiver; pseudodifferential signal; pseudorandom-bit-sequence; truly-differential transimpedance amplifier; very short reach application; Differential amplifiers; Energy consumption; Optical amplifiers; Optical buffering; Optical receivers; Power amplifiers; Power supplies; Semiconductor optical amplifiers; Testing; Topology;
Conference_Titel :
Communications, 2006 23rd Biennial Symposium on
Conference_Location :
Kigston, Ont.
Print_ISBN :
0-7803-9528-X
DOI :
10.1109/BSC.2006.1644564
