On-line testing of switched-capacitor filters

Abstract

Proposes a new solution to alleviate the area overhead when replication is used in switched-capacitor filters. This new approach, although based on the voter mechanism, only requires a programmable biquad and some control logic as extra components (instead of the full duplication of the system). To some extent, it can be considered a first intent to apply information redundancy for the concurrent test of analog circuits.<>