Continuous time ADC and filter

US9344107B1 · kind B1 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• The Trustees of Columbia University in the City of New York · US

Inventors

• Dominique Morche · Meylan, FR
• Alin Ratiu · Grenoble, FR
• Sharvil Pradeep Patil · New York, US
• Yannis Tsividis · New York, US

Key dates

• Filing date: Jun 12, 2015
• Grant date: May 17, 2016
• Expiry date: Jun 12, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B2001/1063
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

The invention concerns an analog to digital conversion and filtering circuit comprising: an input for receiving an analog input signal; an asynchronous continuous-time analog to digital converter adapted to generate, based on the analog input signal, a digital continuous-time signal; a feedback path comprising a digital continuous-time filter adapted to generate a filtered signal to be combined with the analog input signal, the digital continuous-time filter being adapted to generate the filtered signal by: filtering out at least one first frequency range of the digital continuous-time signal; and amplifying at least one second frequency range of the digital continuous-time signal.