160 MS/s 20 MHz bandwidth third-order noise shaping SAR ADC
Sign Up to like & getrecommendations! Published in 2017 at "Electronics Letters"
DOI: 10.1049/el.2017.3969
Abstract: This Letter proposes an operational-amplifier free with an embedded passive gain technique to implement an oversampling, noise shaping successive approximation register (SAR) ADCs. In the proposed scheme, the comparator noise, quantisation noise, settling errors and… read more here.
Keywords: order noise; third order; sar adc; noise ... See more keywords
A 40-MHz Bandwidth 75-dB SNDR Partial-Interleaving SAR-Assisted Noise-Shaping Pipeline ADC
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2020.3033931
Abstract: This article presents a successive approximation register (SAR)-assisted noise-shaping (NS) pipeline analog-to-digital converter (ADC) incorporating various techniques to improve its bandwidth (BW), energy efficiency, and robustness. A multiple-input dynamic amplifier is used for both residue… read more here.
Keywords: sar; sar assisted; noise shaping; adc ... See more keywords
OTA-Free 1–1 MASH ADC Using Fully Passive Noise-Shaping SAR & VCO ADC
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2021.3128489
Abstract: We present an OTA-free 1–1 multi-stage noise-shaping (MASH) analog-to-digital converter (ADC) utilizing a fully passive noise-shaping successive approximation register (NS-SAR) as the first stage and an open-loop ring voltage-controlled oscillator (VCO) as the second stage.… read more here.
Keywords: ota free; noise; adc; noise shaping ... See more keywords
A 7.3-μ W 13-ENOB 98-dB SFDR Noise-Shaping SAR ADC With Duty-Cycled Amplifier and Mismatch Error Shaping
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2022.3168588
Abstract: This article presents a second-order noise-shaping successive-approximation-register (SAR) analog-to-digital converter (ADC) that employs a duty-cycled amplifier and digital-predicted mismatch error shaping (MES). The loop filter is composed of an active amplifier and two cascaded passive… read more here.
Keywords: noise; cycled amplifier; duty cycled; mismatch ... See more keywords
An 84-dB-SNDR Low-OSR Fourth-Order Noise-Shaping SAR With an FIA-Assisted EF-CRFF Structure and Noise-Mitigated Push-Pull Buffer-in-Loop Technique
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2022.3199241
Abstract: To design a low-oversampled high-resolution noise-shaping successive approximation register (NS-SAR) analog-to-digital converters (ADCs), two main bottlenecks need to be addressed. One is to implement high-order optimized NS with simple and low-power hardware that maximally preserves… read more here.
Keywords: loop; noise; crff structure; fourth order ... See more keywords
An 81.6 dB SNDR 15.625 MHz BW Third-Order CT SDM With a True Time-Interleaving Noise-Shaping Quantizer
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2022.3228760
Abstract: This work introduces a time-interleaved architecture to tackle the speed-resolution bottleneck of the noise-shaping (NS) successive approximation register (SAR) quantizer in a continuous-time (CT) sigma-delta modulator (SDM). A critical insight is that introducing a delay… read more here.
Keywords: time; sndr 625; 625 mhz; quantizer ... See more keywords
A Configurable Noise-Shaping Band-Pass SAR ADC With Two-Stage Clock-Controlled Amplifier
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2020.3012998
Abstract: This article presents an $8\times $ -oversampling successive approximation register (SAR) analog-to-digital converter (ADC) with configurable center frequency of noise shaping (NS), which permits the signal passband being configured to any one of the 8… read more here.
Keywords: sub; noise shaping; adc; band ... See more keywords
A 2.1 mW 2 MHz-BW 73.8 dB-SNDR Buffer-Embedded Noise-Shaping SAR ADC
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2021.3109991
Abstract: This paper presents a buffer-embedded noise-shaping SAR ADC, whose input buffer separates the capacitive DAC (CDAC) and the sampling capacitor (CS) at the input and output of the input buffer. This compensates for the non-linearity… read more here.
Keywords: input; embedded noise; buffer embedded; noise shaping ... See more keywords
A 625kHz-BW, 79.3dB-SNDR Second-Order Noise-Shaping SAR ADC Using High-Efficiency Error-Feedback Structure
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2021.3121245
Abstract: This paper presents a compact and energy efficient noise-shaping successive-approximation-register (NS-SAR) analog-to-digital converter (ADC) based on the error-feedback (EF) structure. Different from most prior works adopting the cascaded integrator feed-forward (CIFF) structure, the proposed architecture… read more here.
Keywords: adc; error feedback; feedback structure; noise ... See more keywords
A Precision, Energy-Efficient, Oversampling, Noise-Shaping Differential SAR Capacitance-to-Digital Converter
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2018.2844899
Abstract: This paper introduces an oversampling, noise-shaping differential successive-approximation-register capacitance-to-digital converter (CDC) architecture for interfacing capacitive sensors. The proposed energy-efficient CDC achieves high-precision capacitive resolution by employing oversampling and noise shaping. The switched-capacitor (SC) integrator is… read more here.
Keywords: converter; noise shaping; shaping differential; energy ... See more keywords
Low-Noise, High-Linearity Sine-Wave Generation Using Noise-Shaping Phase-Switching Technique
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2021.3139662
Abstract: To develop a lower cost on-chip characterization solution for postsilicon validation, this article proposed a “noise-shaping phase-switching” technique on a sigma–delta modulated digital-to-analog converter (DAC) to realize a low-noise, high-linearity sinusoidal-wave generator. The proposed technique… read more here.
Keywords: switching technique; noise shaping; shaping phase; phase switching ... See more keywords