Patents by Inventor Luca GIUFFREDI

Luca GIUFFREDI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fully differential operational amplifier
    Patent number: 9941850
    Abstract: A fully differential operational amplifier is provided. The amplifier has input nodes and includes a differential input stage for receiving input signals over the input nodes and providing output signals on first and second intermediary nodes. The amplifier includes a fully differential amplification stage having positive and negative inputs coupled to the first and second intermediary nodes, respectively. The amplifier includes a first compensation transistor having conduction terminals coupled to the first intermediary node and a first node, and a control terminal coupled to a negative output of the fully differential amplification stage. The amplifier includes a second compensation transistor having conduction terminals coupled to the second intermediary node and a second node, and a control terminal coupled to a positive output of the fully differential amplification stage.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: April 10, 2018
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Luca Giuffredi, Andrea Boni, Marco Ronchi
  • FULLY DIFFERENTIAL OPERATIONAL AMPLIFIER
    Publication number: 20180097488
    Abstract: A fully differential operational amplifier is provided. The amplifier has input nodes and includes a differential input stage for receiving input signals over the input nodes and providing output signals on first and second intermediary nodes. The amplifier includes a fully differential amplification stage having positive and negative inputs coupled to the first and second intermediary nodes, respectively. The amplifier includes a first compensation transistor having conduction terminals coupled to the first intermediary node and a first node, and a control terminal coupled to a negative output of the fully differential amplification stage. The amplifier includes a second compensation transistor having conduction terminals coupled to the second intermediary node and a second node, and a control terminal coupled to a positive output of the fully differential amplification stage.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 5, 2018
    Inventors: Luca GIUFFREDI, Andrea BONI, Marco RONCHI