Invention Grant
- Patent Title: Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage
-
Application No.: US15192151Application Date: 2016-06-24
-
Publication No.: US09641143B2Publication Date: 2017-05-02
- Inventor: Laurent Chabert
- Applicant: STMicroelectronics SA
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics SA
- Current Assignee: STMicroelectronics SA
- Current Assignee Address: FR Montrouge
- Agency: Gardere Wynne Sewell LLP
- Priority: FR1458865 20140919
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H04B1/06 ; H03F1/02 ; H03F3/19 ; H03F3/193 ; H03F3/30 ; H03D7/14 ; G01S7/03

Abstract:
An electronic device includes a transimpedance amplifier stage having an amplifier end stage of the class AB type and a preamplifier stage coupled between an output of a frequency transposition stage and an input of the amplifier end stage. A self-biased common-mode control stage is configured to bias the preamplifier stage. The preamplifier stage is formed by a differential amplifier with an active load that is biased in response to the self-biased common-mode control stage.
Public/Granted literature
Information query