The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2024
Filed:
Apr. 29, 2021
The Regents of the University of Michigan, Ann Arbor, MI (US);
Rohit Rothe, Ann Arbor, MI (US);
Sechang Oh, Ann Arbor, MI (US);
Kyojin Choo, Ann Arbor, MI (US);
Seok Hyeon Jeong, Ann Arbor, MI (US);
Dennis Sylvester, Ann Arbor, MI (US);
David T. Blaauw, Ann Arbor, MI (US);
THE REGENTS OF THE UNIVERSITY OF MICHIGAN, Ann Arbor, MI (US);
Abstract
An amplifier is presented with a sample and average common mode feedback resistor. The amplifier circuit includes a feedback capacitor and a feedback resistor in parallel with the feedback capacitor, where the feedback capacitor and the feedback resistor form part of the negative feedback path for the amplifier. Of note, the feedback resistor is comprised of a low pass filter in series with a switched capacitor resistor, such that the low pass filter is electrically coupled to the output of the amplifier circuit and the switched capacitor resistor is electrically coupled to the inverting input of the amplifier circuit. The amplifier circuit further includes a control circuit interfaced with switches of the switched capacitor resistor. The high pass corner of the switched capacitor resistor is preferably lower than corner of the low pass filter.