A single-chip 2.4-Gb/s CMOS optical receiver IC with low substratecross-talk preamplifier

摘要

A single-chip 2.4-Gb/s CMOS optical-receiver IC has been realizednfor the first time using 0.15-Μm gate bulk CMOS. The chip integratesna preamplifier, an automatic gain control, a phase-locked loop, and an1:8 demultiplexer. This circuit has achieved a low power consumption ofn104 mW (at 2.4 Gb/s, VDD=2 V), which is much smaller thannthat of conventional GaAs field-effect transistors and Si bipolar IC's.nThe design methodology to reduce digital-to-analog substrate cross-talknnoise is discussed. Using this methodology, a low-cross-talk sensitivenpreamplifier circuit with a 5.9 GHz bandwidth and a 59-dBΩ gainnhas been developed and integrated into a single-chip receiver IC