公开(公告)号：US20250080072A1

公开(公告)日：2025-03-06

申请号：US18812704

申请日：2024-08-22

Applicant: STMicroelectronics International N.V.

Inventor： Franck MONTAUDON ,  Mounir BOULEMNAKHER ,  Julien GOULIER

IPC: H03F3/45

Abstract: An amplification circuit includes an amplifier circuit (provided by an operational amplifier) that amplifies a signal to be demodulated. A feedback loop of the amplification circuit has a resistance value that is controlled to discretely vary according to a level of an output node of the amplifier circuit. A comparison of the output level with respect to one or a plurality of thresholds, which define out-of-saturation operating ranges of the amplifier circuit, drives selection of the resistance value.

公开(公告)号：US20250076914A1

公开(公告)日：2025-03-06

申请号：US18815142

申请日：2024-08-26

Applicant: STMicroelectronics International N.V.

Inventor： Marc JOISSON ,  Mounir BOULEMNAKHER

IPC: G05F3/16

Abstract: A device includes a first MOS transistor connected between first and second nodes, a selectively activatable current source connected between the second node and a third node and a circuit configured to control the first transistor to regulate a voltage at the second node to a first set point value. The device further includes a second MOS transistor connected between the first node and a fourth node, and having its gate connected to the gate of the first MOS transistor, a third MOS transistor connected between the third and fourth nodes, a switch connected between the second and fourth nodes, and another circuit configured to control the third transistor to regulate a voltage at the fourth node to a second set point value.