Title :
A transimpedance amplifier with DC-coupled differential photodiode current sensing for wireless optical communications
Author :
Zand, Bahram ; Phang, Khoman ; Johns, David A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
A transimpedance amplifier with differential DC-coupled photocurrent sensing was integrated in a standard 0.35 μm CMOS process. It achieves 33 kΩ transimpedance gain and a bandwidth of 255 MHz with a 2 pF photodiode capacitance. This design exhibits 40 dB power supply rejection ratio and an average input noise of (6.8pA)/(√Hz). Power dissipation is 30 mW from a 3 V supply
Keywords :
CMOS analogue integrated circuits; differential amplifiers; optical communication equipment; photodiodes; preamplifiers; 0.35 micron; 2 pF; 255 MHz; 3 V; 30 mW; CMOS process; DC-coupled current sensing; differential photodiode current sensing; transimpedance amplifier; wireless optical communications; Bandwidth; Capacitance; Circuits; Differential amplifiers; Optical amplifiers; Optical noise; Optical receivers; Photoconductivity; Photodiodes; Wireless sensor networks;
Conference_Titel :
Custom Integrated Circuits, 2001, IEEE Conference on.
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-6591-7
DOI :
10.1109/CICC.2001.929821
