FPAA Prototyping of ΣΔ Analog Digital Converters

A prototyping method for designing mixed signal systems has been presented in the paper. The method is based on implementation of field programmable analog arrays (FPAA) to configure and reconfigure mixed signal systems. A ΣΔ analog digital converter (ADC) structure has been used as an example. The circuit characteristics have been measured and then the structure of the converter has been reconfigured to satisfy input specifications.