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:
Jun. 14, 2022
Filed:
Mar. 28, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
Provided is a track-and-hold circuit capable of reducing the power consumption of a differential amplifier circuit while preserving the broadband nature (without narrowing the bandwidth). In the track-and-hold circuitincluding a differential amplifier circuit, a switch circuit, and a hold capacitor C, the differential amplifier circuitincludes a first resistor Rhaving one end connected to a collector electrode of a first transistor Qconstituting a differential pair, a second resistor Rhaving one end connected to the collector electrode of a second transistor Qconstituting the differential pair, and a third resistor Rto which the other end of the first resistor Rand the other end of the second resistor Rare connected and which is connected between the other ends and a power supply V.