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Shaper design in CMOS for high dynamic range

United States Patent

9,071,219
June 30, 2015
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
An analog filter is presented that comprises a chain of filter stages, a feedback resistor for providing a negative feedback, and a feedback capacitor for providing a positive feedback. Each filter stage has an input node and an output node. The output node of a filter stage is connected to the input node of an immediately succeeding filter stage through a resistor. The feedback resistor has a first end connected to the output node of the last filter stage along the chain of filter stages, and a second end connected to the input node of a first preceding filter stage. The feedback capacitor has a first end connected to the output node of one of the chain of filter stages, and a second end connected to the input node of a second preceding filter stage.
De Geronimo; Gianluigi (Syosset, NY), Li; Shaorui (Yaphank, NY)
Brookhaven Science Associates, LLC (Upton, NY)
14/ 115,308
April 4, 2012
STATEMENT OF GOVERNMENT LICENSE RIGHTS The present invention was made with government support under contract number DE-AC02-98CH10886 awarded by the U.S. Department of Energy. The United States government has certain rights in the invention.