Title :
An integrated 1.25 Gbit/s laser driver/post amplifer IC
Author :
Baumgartner, Steve ; Freitag, Ladd ; Paschal, Matt ; Siljenberg, Dave
Author_Institution :
IBM Corp., Rochester, MN, USA
Abstract :
This paper presents the first reported integrated 1.25 Gbit/s post amplifier and laser driver, to the authors knowledge. The post amplifier amplifies 20 mV signals from a pre-amplifier and provides redundant loss of signal detectors. The laser driver provides up to 100 mA DC drive and 25 mAp-p C drive. This presents a large on chip isolation challenge and 79 dB of isolation was achieved. The chip has sufficient redundancy and error detection to provide international Class 1 laser safety certification. The chip operated up to 1.6 Gb/s. The design is implemented in a 0.45 um Leff BiCMOS technology with 12 GHz NPN´s. It is packaged in a 48 lead 7 mm plastic quad flat pack surface mount package
Keywords :
BiCMOS integrated circuits; driver circuits; integrated optoelectronics; 0.45 micron; 1.25 Gbit/s; BiCMOS technology; NPN; error detection; integrated laser driver/post amplifer IC; international Class 1 laser safety certification; on chip isolation; plastic quad flat pack surface mount package; redundant loss; signal detector; BiCMOS integrated circuits; Certification; Detectors; Driver circuits; Electronics packaging; Isolation technology; Plastic packaging; Redundancy; Safety; Signal detection;
Conference_Titel :
Custom Integrated Circuits Conference, 1997., Proceedings of the IEEE 1997
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3669-0
DOI :
10.1109/CICC.1997.606576
