System und Verfahren zur Direkten Kopplung an einen Analog-Digital-Wandler mit Geringerer Spannungsreferenz

Details

Veröffentlichungs-Nr.

EP3229372

Aktenzeichen

EP16305396

Anmeldetag

6. April 2016

Veröffentlichung

26. Juni 2019

Erteilung

26. Juni 2019

Rechtsraum

EP

IPC

H03G3/30H03M1/00H03K21/00H03M9/00H03M7/30

Abstract

A device includes a variable gain amplifier, a voltage shifter, a variable gain amplifier half replica module, and an analog to digital converter. The variable gain amplifier includes an input terminal to receive an input signal, an output terminal to provide a first output signal that is biased based on a first common-mode voltage reference. The voltage shifter circuit includes first and second input terminals, and an output terminal to provide, to the analog to digital converter, a third output signal that is biased based on a second common-mode voltage reference. The variable gain amplifier half replica module includes an output terminal coupled to the second input terminal of the voltage shifter circuit, the variable gain amplifier half replica module to control the third output signal of the voltage shifter circuit based on the first common-mode voltage reference and the second common-mode voltage reference.

Anmelder

Firma

NXP USA, Inc.

Land

🇺🇸 USA

Fachgebiete