COMPLEMENTARY CURRENT-MODE BIQUAD WITH HIGH LINEARITY

Certain aspects of the present disclosure provide methods and apparatus for processing signals using a current-mode biquad filter, which may have a tunable bias current and/or tunable capacitance. One example apparatus is a current-mode biquad filter circuit that includes a first input current node,...

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Bibliographic Details
Main Authors GATHMAN, Timothy, Donald, LEUNG, Lai, Kan
Format Patent
LanguageEnglish
French
German
Published 08.11.2023
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Summary:Certain aspects of the present disclosure provide methods and apparatus for processing signals using a current-mode biquad filter, which may have a tunable bias current and/or tunable capacitance. One example apparatus is a current-mode biquad filter circuit that includes a first input current node, a first capacitive element coupled to the first input current node, a first output current node, a first active filter circuit coupled between the first input current node and the first output current node, and a second active filter circuit coupled between the first input current node and the first output current node. The second active filter circuit is complementary to the first active filter circuit.
Bibliography:Application Number: EP20210847797