Invention Grant
- Patent Title: Analog-to-digital converter
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Application No.: US16378794Application Date: 2019-04-09
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Publication No.: US10554219B2Publication Date: 2020-02-04
- Inventor: Johan Raman , Pieter Rombouts
- Applicant: MELEXIS TECHNOLOGIES SA
- Applicant Address: CH Bevaix
- Assignee: MELEXIS TECHNOLOGIES SA
- Current Assignee: MELEXIS TECHNOLOGIES SA
- Current Assignee Address: CH Bevaix
- Agency: Workman Nydegger
- Priority: EP18166658 20180410
- Main IPC: H03M3/00
- IPC: H03M3/00

Abstract:
An analog-to-digital converter comprises a first quantizer arranged for yielding a first digital signal; an error signal generation block arranged for generating an error signal representative of a difference between an analog input signal and the first digital signal; an analog loop filter arranged for receiving the error signal; a second quantizer arranged for receiving an output signal of the analog loop filter and for outputting a second digital signal; a digital loop filter arranged for receiving the second digital signal and for providing an input signal to the first quantizer; and a recombiner block comprising a first recombination and a second recombination filter, and an adder circuit for adding outputs of the first and second recombination filters. The first and second recombination filters are selected to obtain an analog-to-digital converted output signal being less dependent on quantization noise caused by the first quantizer than a first digital signal.
Public/Granted literature
- US20190312584A1 ANALOG-TO-DIGITAL CONVERTER Public/Granted day:2019-10-10
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