Title :
A CMOS 240 Mb/s optical receiver with a transimpedance-bandwidth of 18 THz/spl Omega/
Author :
Steyaert, M. ; Ingels, M. ; Crols, J. ; Van der Plas, G.
Author_Institution :
Katholieke Univ., Leuven, Heverlee, Belgium
Abstract :
An optical receiver for a low-cost, high-speed optical link must convert a /spl mu/A-input current into a digital signal. Furthermore the receiver should use a standard commercial digital CMOS process with little external overhead. In this way the optical receiver can be integrated with a DSP into a single VLSI device. This optical receiver with a preamplifier-transimpedance of 150 k/spl Omega/ achieves a bit rate of 240Mb/s for input currents as low as l /spl mu/A. The circuit achieves 490 Mb/s at 15 /spl mu/A input currents. The transimpedance-bandwidth is 18THz/spl Omega/ and the open-loop gain A more than 100.<>
Keywords :
CMOS integrated circuits; VLSI; optical receivers; preamplifiers; 150 kohm; 240 to 490 Mbit/s; VLSI device; commercial digital CMOS process; high-speed optical link; input currents; open-loop gain; optical receiver; preamplifier transimpedance; transimpedance bandwidth; Bandwidth; Bit rate; CMOS process; Circuit testing; Inverters; Optical amplifiers; Optical feedback; Optical receivers; Optical sensors; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 1994. Digest of Technical Papers. 41st ISSCC., 1994 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-1844-7
DOI :
10.1109/ISSCC.1994.344678
