Wide-band analog CMOS circuits at intermediate frequencies

A cell library has been created for development of semicustom analog ICs. This library includes amplifier, variable gain amplifier, limiter, and switch cells for use in the 5-500 MHz band. Performance is comparable to that of similar IF frequency devices in both hybrid and discrete form. These circuits exhibit predictable characteristics, high yields, and high levels of integration. Suitable applications for analog CMOS IF circuits are where small size, production cost, and good channel-to-channel matching are important. These characteristics are met by maximizing the level of integration on chip. The author examines and discusses the design of the abovementioned devices