Pseudo-parallel sigma-delta modulator for electrical energy measurement applications
Sign Up to like & getrecommendations! Published in 2018 at "Analog Integrated Circuits and Signal Processing"
DOI: 10.1007/s10470-017-1074-4
Abstract: This paper proposes a design approach for pseudo-parallel sigma-delta modulator as part of an analog-to-digital converter for monolithic energy measurement systems. The main requirements for this application are a resolution of 16 bits and a… read more here.
Keywords: sigma delta; delta modulator; pseudo parallel; energy measurement ... See more keywords
Neighbor sum distinguishing total coloring of 2-degenerate graphs
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Combinatorial Optimization"
DOI: 10.1007/s10878-016-0053-5
Abstract: A proper k-total coloring of a graph G is a mapping from $$V(G)\cup E(G)$$V(G)∪E(G) to $$\{1,2,\ldots ,k\}$${1,2,…,k} such that no two adjacent or incident elements in $$V(G)\cup E(G)$$V(G)∪E(G) receive the same color. Let f(v) denote… read more here.
Keywords: total coloring; sigma delta; sum distinguishing; distinguishing total ... See more keywords
Functional verification of a sigma-delta ADC real number model
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Electronics"
DOI: 10.1080/00207217.2021.1908619
Abstract: ABSTRACT Mixed-signal applications form one of the hottest topics in the semiconductor industry. Considerable effort is required for the creation of designs that consist of both analog and digital blocks with high accuracy and performance.… read more here.
Keywords: verification; sigma delta; delta adc; functional verification ... See more keywords
A 0.6-V, 69-dB subthreshold sigma–delta modulator
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Semiconductors"
DOI: 10.1088/1674-4926/39/12/125004
Abstract: In this paper a 0.6 V, 14 bit/500 Hz subthreshold inverter-based sigma–delta modulator is proposed. In the first integrator of the modulator, a bootstrap switch is used to accomplish accurate signal sampling. Without a transconductor… read more here.
Keywords: sigma delta; power; delta modulator; subthreshold sigma ... See more keywords
A 43-mW MASH 2-2 CT $\Sigma \Delta$ Modulator Attaining 74.4/75.8/76.8 dB of SNDR/SNR/DR and 50 MHz of BW in 40-nm CMOS
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2016.2616361
Abstract: This paper proposes a multistage noise-shaping continuous-time sigma-delta modulator (CT $\Sigma \Delta \text{M}$ ) with on-chip RC time constant calibration circuits, multiple feedforward interstage paths, and a fully integrated noise-cancellation filter (NCF). The core modulator… read more here.
Keywords: tex math; sigma delta; inline formula;
High-Pass $\Sigma \Delta$ Converter Design Using a State-Space Approach and Its Application to Cardiac Signal Acquisition
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Biomedical Circuits and Systems"
DOI: 10.1109/tbcas.2018.2817926
Abstract: Cardiac signal acquisition with high linearity and accuracy of the high-pass cut-off frequency imposes a challenge on the implementation of the analog preprocessing and the analog-to-digital converter. This paper describes a state-space-based methodology for designing… read more here.
Keywords: tex math; sigma delta; inline formula;
High-Pass Sigma–Delta Modulator With Techniques of Operational Amplifier Sharing and Programmable Feedforward Coefficients for ECG Signal Acquisition
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Biomedical Circuits and Systems"
DOI: 10.1109/tbcas.2021.3082545
Abstract: A high-pass sigma–delta modulator (HPSDM) is proposed for electrocardiography (ECG) signal acquisition system. The HPSDM is implemented using operational amplifier (op-amp) sharing and programmable feedforward coefficients. The op-amp sharing is adopted to reduce the quantity… read more here.
Keywords: feedforward coefficients; sigma delta; hpsdm; programmable feedforward ... See more keywords
A Third-Order MASH $\Sigma \Delta $ Modulator Using Passive Integrators
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2017.2704164
Abstract: This paper presents a MASH $\Sigma \Delta \text{M}$ using only passive integrators and simple differential pairs as low-gain blocks. Instead of high-gain power hungry op-amps it uses more processing gain from the comparator (1-bit quantizer)… read more here.
Keywords: tex math; sigma delta; inline formula;
Low Delay Short Word Length Sigma Delta Active Noise Control
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2021.3096180
Abstract: Active noise control (ANC) requires a controller with a small delay. However, in most ANC applications, this delay is significant due to the typically low sample rate, the anti-aliasing (AA), and reconstruction filters (RC) of… read more here.
Keywords: sigma delta; word length; word; active noise ... See more keywords
A Single-Step Subranging Relaxation Oscillator-Based Open-Loop Sigma-Delta ADC
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2022.3204507
Abstract: This paper presents a novel subranging Sigma-Delta ADC using a relaxation Current-Controlled Oscillator (ICO). The instantaneous frequency of the ICO at the sampling instant determines its time resolution and hence its quantization error, while its… read more here.
Keywords: delta adc; oscillator; relaxation; sigma delta ... See more keywords
A 10-MHz Bandwidth Two-Path Third-Order $\Sigma\Delta$ Modulator With Cross-Coupling Branches
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2018.2859431
Abstract: This brief presents a two-path discrete-time third-order sigma-delta ( $\Sigma \Delta$ ) modulator with an extra zero in the noise transfer function (NTF) located at $z = -1$ , reducing the NTF coefficients of intermediate… read more here.
Keywords: tex math; sigma delta; inline formula;