Szczegóły publikacji
Opis bibliograficzny
Design of 1.55 NEF, 2$\mu$A, chopper based amplifier in 40nm CMOS for biomedical multichannel integrated system / Paweł Wargacki, Piotr KMON // W: MIXDES 2022 [Dokument elektroniczny] : 29th international conference on Mixed Design of integrated circuits and systems : 23–24 June 2022, [Wrocław, Poland]. — Wersja do Windows. — Dane tekstowe. — Łódź : Lodz University of Technology ; IEEE, cop. 2022. — e-ISBN: 978-83-63578-21-3. — S. 99–104. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 104, Abstr. — Publikacja dostępna online od: 2022-07-29
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 141437 |
|---|---|
| Data dodania do BaDAP | 2022-08-19 |
| Tekst źródłowy | URL |
| DOI | 10.23919/MIXDES55591.2022.9837969 |
| Rok publikacji | 2022 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawcy | Institute of Electrical and Electronics Engineers (IEEE), Politechnika Łódzka |
Abstract
We present a design of a low-noise chopper based amplifier for biomedical recordings. It is a part of a multi-channel integrated system fabricated in 40nm CMOS technology. It features a DC stabilizing loop for compensating electrode offset and positive feedback for input impedance boosting. The first stage uses double current reuse. Design consumes 2µA per channel under 1V supply voltage and occupies only 0.044mm2 of silicon area. A novel input stage presented in this work combines a low noise performance of a stacked input pair with the high DC gain of the folded cascode amplifier. The simulated input-referred noise is 0.96/µVrms in the 0.5-100Hz frequency band and 2.8µVrms in the 100Hz-10kHz frequency band, respectively, leading to a noise-efficiency factor of 5.29 (0.5-100Hz) and 1.55 (0.1-10kHz).
