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:
May. 22, 2007
Filed:
Jul. 21, 2005
Ahmed Mohamed Abdelatty Ali, Oak Ridge, NC (US);
Christopher Daniel Dillon, Greensboro, NC (US);
Ahmed Mohamed Abdelatty Ali, Oak Ridge, NC (US);
Christopher Daniel Dillon, Greensboro, NC (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
Signal sampler embodiments are provided for processing input signals along signal paths in response to mode-command signals. They include a follower transistor with a control terminal and a current terminal that establish at least part of a signal path. They also include a switched-capacitor network that receives signals from the current terminal in response to a first mode-command signal and that couple a selected one of a set of reference signals to the current terminal in response to a second mode-command signal. During a second mode-command signal, a bias switch is arranged to bias off the follower transistor by coupling a bias signal to the control terminal that approximates the selected reference signal. Accordingly, the amplitude of the reference signals can be increased to facilitate an increased dynamic range of the input signals without biasing the follower transistor into breakdown.