A 10kHz-BW 93.7dB-SNR chopped ΔΣ ADC with 30V input CM range and 115dB CMRR at 10kHz | IEEE Conference Publication | IEEE Xplore

A 10kHz-BW 93.7dB-SNR chopped ΔΣ ADC with 30V input CM range and 115dB CMRR at 10kHz


Abstract:

This paper presents a 15-bit ΔΣ ADC with 10kHz-BW which can handle 30V CM voltages with high AC CMRR (in excess of 115dB at 10kHz) while operating from a 1.8 V supply. An...Show More

Abstract:

This paper presents a 15-bit ΔΣ ADC with 10kHz-BW which can handle 30V CM voltages with high AC CMRR (in excess of 115dB at 10kHz) while operating from a 1.8 V supply. An HV capacitively-coupled chopper at its input enables the accurate sampling of input signals beyond the supply rails. Chopping is used to mitigate the ADC's offset and to enhance its CMRR, especially at high frequencies.
Date of Conference: 06-08 November 2017
Date Added to IEEE Xplore: 28 December 2017
ISBN Information:
Conference Location: Seoul, Korea (South)

References

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