This paper presents a chopper instrumentation amplifier designed in 28nm CMOS technology. The operational amplifier has a rail-to-rail folded cascode input stage, which ensures a constant gm over the available common-mode range. It is characterized by a Nested Miller compensation. All transistors operate in sub-threshold region; thus the opamp has been designed through a specific procedure for sub-threshold operation. The chopper technique is exploited to reduce the input referred offset and noise. The circuit operates with 0.9 V supply voltage and exhibits a simulated 106dB DC gain and 329kHz GBW. Montecarlo simulations demonstrate an offset distribution with 2.2μV standard deviation. The input noise spectral density is equal to 27nV/√Hz, giving a noise efficiency factor of 8.
Pipino, A., Pezzotta, A., Resta, F., De Matteis, M., & Baschirotto, A. (2016). A rail-to-rail-input chopper instrumentation amplifier in 28nm CMOS. In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (pp.73-76). Institute of Electrical and Electronics Engineers Inc..
Citazione: | Pipino, A., Pezzotta, A., Resta, F., De Matteis, M., & Baschirotto, A. (2016). A rail-to-rail-input chopper instrumentation amplifier in 28nm CMOS. In Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems (pp.73-76). Institute of Electrical and Electronics Engineers Inc.. |
Tipo: | slide + paper |
Carattere della pubblicazione: | Scientifica |
Presenza di un coautore afferente ad Istituzioni straniere: | No |
Titolo: | A rail-to-rail-input chopper instrumentation amplifier in 28nm CMOS |
Autori: | Pipino, A; Pezzotta, A; Resta, F; De Matteis, M; Baschirotto, A |
Autori: | PEZZOTTA, ALESSANDRO (Secondo) DE MATTEIS, MARCELLO (Penultimo) BASCHIROTTO, ANDREA (Ultimo) |
Data di pubblicazione: | 2016 |
Lingua: | English |
Nome del convegno: | IEEE International Conference on Electronics, Circuits, and Systems (ICECS), december 6-9 |
ISBN: | 9781509002467 |
Appare nelle tipologie: | 02 - Intervento a convegno |