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. 23, 2021
Filed:
Dec. 18, 2019
Ihp Gmbh—innovations for High Performance Microelectronics/leibniz-institut Fur Innovative Mikroelektronik, Frankfurt, DE;
Pedro Rito, Frankfurt, DE;
Iria Garcia Lopez, Frankfurt, DE;
Minsu Ko, Frankfurt, DE;
Dietmar Kissinger, Frankfurt, DE;
Abstract
The invention relates to a gain-control stage () for generating gain-control signals (V, V) for controlling an external variable-gain amplifying unit (). The gain-control stage comprises a first () and a second differential amplifier unit () that receive, at a respective input interface () a reference voltage signal (V) and a variable gain-control voltage signal (V). The second differential amplifier unit is configured to provide, via a second output interface (), a control voltage signal (V) to a controllable first current source () of the first differential amplifier unit (). The first differential amplifier unit () is configured to provide, via a first output interface (), the first and the second gain-control signal (V, V) in dependence on the variable gain-control voltage signal (V), the reference voltage signal (V) and a first biasing current (I) that depends on the control voltage signal.