Low-sensitivity easily trimmed standard building block for active rc filters

Publisher Website
Google Scholar
Abstract
Four building blocks have been found that realise the biquadratic transfer functionT(s)=Ks2 + 2σos + ωoo2/s2 + 2σps + ωop2with very low sensitivities to variations in the passive and active components, and with the possibility of trimming σo, ωoo, σop and ωop independently each by one resistor. The networks may be manufactured in standardised integrated blocks which may be trimmed for specific applications.