Archivio Istituzionale della RicercaA novel ultra-low power amplifier is presented, composed of a Nauta amplifier (1 st stage) and a digital OTA (2 nd stage). This configuration significantly improves the performance in terms of signal distortion, by allowing the DIGOTA to work in a better operating window. The proposed amplifier has been a validated through simulations in TSMC 0.18 μm and compared to the DIGOTA: when used as a voltage-follower it features a much lower output distortion, especially for low amplitude signals.
A Rail-to-Rail Ultra-Low Power OTA Based on a Hybrid Nauta-DIGOTA Topology / Faustini, Paolo; Richelli, Anna; Colalongo, Luigi; Crovetti, Paolo. - STAMPA. - (2024), pp. 1-4. (Intervento presentato al convegno 19th Conference on Ph.D Research in Microelectronics and Electronics (PRIME) tenutosi a Larnaca (Cyprus) nel 9-12 June 2024) [10.1109/PRIME61930.2024.10559718].
A Rail-to-Rail Ultra-Low Power OTA Based on a Hybrid Nauta-DIGOTA Topology
Crovetti, Paolo
2024
Abstract
A novel ultra-low power amplifier is presented, composed of a Nauta amplifier (1 st stage) and a digital OTA (2 nd stage). This configuration significantly improves the performance in terms of signal distortion, by allowing the DIGOTA to work in a better operating window. The proposed amplifier has been a validated through simulations in TSMC 0.18 μm and compared to the DIGOTA: when used as a voltage-follower it features a much lower output distortion, especially for low amplitude signals.
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faustini_PRIME (002).pdf
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https://hdl.handle.net/11583/2990103