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A Fully Integrated 4GHz Continuous-Time Bandpass Delta-Sigma Converter

Abstract : A fourth-order bandpass Delta-Sigma converter with integrated LC resonators is presented in this paper. It is based on a multi-feedback architecture with a multi-bit quantizer in the main modulator path. This architecture allows achieving high-order noise-shaping maintaining modulator stability. Two integrated LC resonators with active Q enhancement circuits are used in order to improve the overall resonator quality factor. This data converter is designed in a 0.13 µm CMOS process from STMicroelectronics. It achieves a DR of 68dB in 30MHz bandwidth with a 4 GHz sampling frequency
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Contributor : Equipe Conception de Circuits <>
Submitted on : Wednesday, November 3, 2010 - 2:31:12 PM
Last modification on : Wednesday, October 9, 2019 - 9:30:27 PM


  • HAL Id : hal-00531663, version 1


Quentin Béraud-Sudreau, André Mariano, Dominique Dallet, Yann Deval, Jean-Baptiste Begueret. A Fully Integrated 4GHz Continuous-Time Bandpass Delta-Sigma Converter. ICECS 2010, Dec 2010, ATHENES, Greece. pp.250-254. ⟨hal-00531663⟩



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