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:
Nov. 22, 2011
Filed:
Jul. 01, 2009
Gajender Rohilla, Bothell, WA (US);
Eashwar Thiagarajan, Bothell, WA (US);
Harold Kutz, Edmonds, WA (US);
Monte Mar, Issaquah, WA (US);
Mohandas Palatholmana Sivadasan, Bangalore, IN;
Gajender Rohilla, Bothell, WA (US);
Eashwar Thiagarajan, Bothell, WA (US);
Harold Kutz, Edmonds, WA (US);
Monte Mar, Issaquah, WA (US);
Mohandas Palatholmana Sivadasan, Bangalore, IN;
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A buffer circuit includes an input configured to receive an input signal; and a buffer configured to generate an output signal based on the input signal. In an embodiment, the output signal has a linear relationship with the input signal when the input signal is within the input voltage range; and the buffer circuit further includes a level-shifting circuit coupled with the input, wherein the level shifting circuit determines an input voltage range, and wherein one of an upper limit and a lower limit of the input voltage range is within 50 millivolts from a supply rail voltage. In another embodiment, the buffer circuit further includes a programmable chopping module coupled with the buffer, wherein the programmable chopping module is programmable with a selected configuration from a plurality of configurations, and wherein the programmable chopping modulates the input signal based on the selected configuration. In yet another embodiment, the buffer circuit further includes a programmable output filter coupled with the buffer, wherein the programmable output filter is programmable with a selected configuration from a plurality of configurations, and wherein the programmable output filter filters a frequency band of the output signal based on the selected configuration.