Implementation of 8-bit folding and interpolating analog to digital converter in 90nm technology

摘要

An analog to digital converter is a mixed signal device which converts an analog electrical signal into digital data. Thus they form the front end of any digital circuit in real life signal processing. Looking at the industry progress in recent years, the need to design an compact low power, high speed and wide bandwidth ADC has increased. There have been different architectures of ADCs which are designed with evolution of electronic components. One such type of ADC is Flash ADC which is fastest in its operation at the cost of large circuitry. Applications which require low power consumption with more speed and more resolution preferably choose Folding and Interpolating (F/I) ADC architecture. This work focuses on reducing the analog circuitry of Flash ADC. The design of the circuit is done in Cadence Virtuoso with CMOS 90 nm technology.