Patents Represented by Attorney Kopel, Patrick & Heybl

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  • Multiplying current mirror with base current compensation
    Patent number: 7081797
    Abstract: A multiplying current mirror provides at least one base current compensation stage between two other stages that establish a desired gain n. (n?1) compensation stages are provided for n>1, and [(1/n)?1] compensation stages for n<1. The compensation stages can be established as series connected repetitions of a basic cell stage. Each stage after the first includes a diode-connected bipolar transistor, with a low overall transistor count.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: July 25, 2006
    Assignee: Analog Devices, Inc.
    Inventor: Derek F. Bowers