Title :
A 50-Mbit/s CMOS monolithic optical receiver
Author :
Pietruszynski, David M. ; Steininger, John M. ; Swanson, Eric J.
Author_Institution :
AT&T Bell Labs., Reading, PA, USA
fDate :
12/1/1988 12:00:00 AM
Abstract :
A general-purpose CMOS optical receiver that operates at data rates from 1 to 50 Mb/s has been fabricated in a 1.75-μm CMOS process. The technology choice resulted in a high level of integration compared with similar bipolar technology receivers. The measured minimum signal current for a 10-9 bit error rate at 50 Mb/s is 48-nA r.m.s. Automatic gain control gives the receiver an electrical input dynamic range of greater than 60 dB. The outputs are TTL (transistor-transistor logic)-compatible and the chip dissipates less than 500 mW when switching at maximum speed. The die area is 16 mm2 . A comprehensive noise analysis of the receiver front end provides insight into the design tradeoffs of optical receiver preamplifiers. A wideband precision amplifier used in the linear channel is discussed in detail. A simple method for recovering low-frequency signal information lost in AC coupling is described
Keywords :
CMOS integrated circuits; optical communication equipment; preamplifiers; receivers; 1 to 50 Mbit/s; 500 mW; AC coupling; CMOS monolithic optical receiver; TTL; low-frequency signal; noise analysis; optical communication equipment; optical receiver preamplifiers; wideband precision amplifier; Bit error rate; CMOS process; CMOS technology; Current measurement; Dynamic range; Gain control; Low-frequency noise; Optical noise; Optical receivers; Semiconductor device measurement;
Journal_Title :
Solid-State Circuits, IEEE Journal of
