{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T13:20:11Z","timestamp":1753881611635,"version":"3.41.2"},"reference-count":23,"publisher":"World Scientific Pub Co Pte Ltd","issue":"14","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2024,9,30]]},"abstract":"<jats:p> This paper presents an innovative general structure for a single-loop Sigma-Delta ([Formula: see text]) modulator that combines low-distortion and noise-coupled techniques to achieve high-resolution for low-power applications. The low-distortion technique adjusts the signal transfer function of the proposed structure to unity, while the noise-coupled technique enhances the order of quantization noise-shaping at the modulator output. These techniques were incorporated into the design to increase the modulator order without requiring additional operational amplifiers during its circuit implementation, resulting in a low-power modulator compared to similar structures. To reduce the number of required amplifiers, a second-order infinite impulse response (IIR) filter was used in the modulator loop filter, in place of two integrators. To assess the proposed structure\u2019s performance, a third-order modulator sample was implemented and simulated for speech recognition applications, specifically, digital hearing aids, using 180 nm complementary metal oxide semiconductor (CMOS) technology. The results indicate that for a third structure with a sampling rate of 64, an input sine signal of \u22126 dBFS and a sampling frequency of 2.56 MHz, the signal to noise plus distortion (SNDR) was 81.9 dB, and the dynamic range (DR) was 88 dB for a 20 KHz bandwidth. The modulator\u2019s power consumption was 126.9 [Formula: see text]W. Circuit and system-level simulations demonstrate the effectiveness of the proposed method. <\/jats:p>","DOI":"10.1142\/s0218126624502499","type":"journal-article","created":{"date-parts":[[2024,3,9]],"date-time":"2024-03-09T15:29:22Z","timestamp":1709998162000},"source":"Crossref","is-referenced-by-count":0,"title":["A Novel Approach for Realizing Loop-Filter in Low-Distortion Noise-Coupled \u03a3\u0394 Modulators"],"prefix":"10.1142","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8471-6708","authenticated-orcid":false,"given":"Sahar","family":"Doolabi","sequence":"first","affiliation":[{"name":"Department of Electrical & Computer Engineering, Kazerun Branch, Islamic Azad University, Kazerun, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5285-7685","authenticated-orcid":false,"given":"Mehdi","family":"Taghizadeh","sequence":"additional","affiliation":[{"name":"Department of Electrical & Computer Engineering, Kazerun Branch, Islamic Azad University, Kazerun, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9100-3618","authenticated-orcid":false,"given":"Mohammad Hossein","family":"Fatehi","sequence":"additional","affiliation":[{"name":"Department of Electrical & Computer Engineering, Kazerun Branch, Islamic Azad University, Kazerun, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9567-7262","authenticated-orcid":false,"given":"Jasem","family":"Jamali","sequence":"additional","affiliation":[{"name":"Department of Electrical & Computer Engineering, Kazerun Branch, Islamic Azad University, Kazerun, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2024,4,4]]},"reference":[{"key":"S0218126624502499BIB001","doi-asserted-by":"publisher","DOI":"10.1109\/JSSC.2005.852161"},{"key":"S0218126624502499BIB002","first-page":"75","volume":"13","author":"Alizadeh Zanjani S.","year":"2022","journal-title":"J. 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