Abstract
This article reviews the use of CMOS distributed amplifiers for broadband optical and wireless communication applications. CMOS distributed amplifiers are justified as a low-cost and highly integrated solution for broad amplifications. As a critical component of DAs, the design and modeling of on-chip inductors are studied. As a design example, a novel four-stage CMOS distributed amplifier for SONET OC-768 optical communication applications is presented. The design is based on a new methodology for the design of CMOS distributed amplifiers to achieve the largest possible bandwidth in a specific CMOS technology. The new design employs smaller spiral inductors that not only reduce the chip area significantly but also increase the bandwidth of the amplifier. A bandwidth of 29 GHz is achieved using a four-stage DA in 0.18 /spl mu/m standard CMOS technology.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have