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The development of the novel theory of unlimited sampling (US) has enabled analog-to-digital converters (ADCs) to effectively manage input signals with dynamic ranges that far exceed the threshold voltage. However, the existing design of the US asynchronous sigma-delta modulator ADC (US-ASDM-ADC) employs a nonlinear modulo operation within a two-channel architecture to generate the remainder and integer parts, leading to significant amplitude loss due to non-ideal phenomena. To address this issue, we propose a novel single-channel architecture and feedback compensation mechanism for the US-ASDM-ADC. Our approach entails a single-channel folding module to generate the remaining modulo operation while simultaneously generating the integer part of the modulo operation and initiating amplitude correction via a Schmitt trigger-based feedback system. We validate our proposed approach through transistor-level simulations. © 2024 IEEE.
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ISSN: 0271-4310
Year: 2024
Language: English
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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