1990•Electronics LettersRequires access

New switched-current integrator

Jennifer B. Hughes, I.C. Macbeth, D.M. Pattullo

Abstract

A switched-current integrator configuration with greatly improved insensitivity to transistor mismatch is described. A universal integrator configuration is developed which performs an algorithm identical to the well known switched-capacitor universal integrator. This permits signal flowgraph synthesis of switched-current filters with similar properties to those of their switched-capacitor counterparts.

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Key concepts: Integrator, Switched capacitor, Passive integrator circuit, Capacitor, Current (fluid), Integrating ADC, Control theory (sociology), Electronic engineering