Title :
Low noise current-mode CMOS transimpedance amplifier for giga-bit optical communication
Author :
Park, S.-M. ; Toumazou, C.
Author_Institution :
Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
A novel current-mode CMOS transimpedance amplifier is described. The design uses a common-gate regulated cascode configuration providing low input impedance and low input current noise. HSPICE simulations using a 0.6 μm CMOS process give 3.5 GHz bandwidth, 61 dB transimpedance gain, 4.2 pA/√(Hz) equivalent input noise current spectral density, and 135 mW power consumption. Measured results of a previous test chip are also presented
Keywords :
CMOS analogue integrated circuits; SPICE; amplifiers; integrated circuit noise; optical communication equipment; 0.6 micron; 135 mW; 3.5 GHz; 61 dB; HSPICE simulation; common-gate regulated cascode design; equivalent input noise current spectral density; input impedance; low noise current-mode CMOS transimpedance amplifier; optical communication; Capacitance; Circuit noise; Impedance; Low-noise amplifiers; Noise cancellation; Optical amplifiers; Optical fiber communication; Optical noise; Photodiodes; Semiconductor optical amplifiers;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704419
