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AssigneeInfineon Technologies AG
InventorsAndrei-Sorin Gheorghe, Dan Ioan Dumitru Stoica, Ilie-Ionut Cristea
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A sigma-delta analog-to-digital converter is configured to convert an analog input signal to a digital output signal at a sampling frequency (fs). The sigma-delta analog-to-digital converter includes a chopper circuit configured to shift the analog input signal from an original frequency to a chopper frequency (fchop=fs/N) to generate a chopped analog signal, where N is a positive integer with N≥1. A chopper period includes a first chopper phase and a second chopper phase. The sigma-delta analog-to-digital converter also includes a timing circuit configured to adjust at least one of a duration of the first chopper phase or a duration of the second chopper phases according to (N/2−k)·Ts, with k being an odd integer equal to or larger than 1, and Ts being a sampling period 1/fs of the sigma-delta analog-to-digital converter.
A sigma-delta analog-to-digital converter (ΣΔ-ADC) configured to convert an analog input signal to a digital output signal at a sampling frequency (fs), the ΣΔ-ADC comprising:
A method for converting an analog input signal to a digital output signal at a sampling frequency (fs) of a sigma-delta analog-to-digital converter (ΣΔ-ADC), the method comprising:
A sigma-delta analog-to-digital converter (ΣΔ-ADC) configured to convert an analog input signal to a digital output signal at a sampling frequency (fs), the ΣΔ-ADC comprising:
Dependencies are inferred from the claim text.