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:
Aug. 26, 2003
Filed:
Mar. 20, 2002
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An offset compensated comparator has capacitors and coupled directly between the inputs of a preamplifier and the outputs of a previous stage amplifier . The comparator also includes additional capacitors and coupled between the inputs of the preamplifier and reference voltage nodes V and V . Switches and are coupled between the additional capacitors and and the reference voltage nodes V and V . An additional switch is coupled between the additional capacitors and . In this configuration, there are no series sampling switches between the previous stage amplifier and the comparator . Eliminating the series switches reduces the load seen by the previous stage amplifier , which allows the previous stage amplifier to have a faster settling time. This allows the current in the previous stage amplifier to be decreased which reduces the power consumption.