A non recursive analog integrator providing M integrations of a sampled analog signal Vn,m. The integrator comprises a series parallel demultiplexer with N outputs, N capacitors each with an electrode connected to a floating potential with respect to a reference potential, and a parallel series multiplexer...http://www.google.fr/patents/US4669055?utm_source=gb-gplus-shareBrevet US4669055 - Non-recursive analog integrator
