This work introduces a class of voltage references able to operate down to 3.2 pW and 0.2-V supply for energy harvesting with relaxed or suppressed voltage regulation (direct harvesting). Inherent wafer-to-wafer process sensitivity limitations and effect of process corners in deep sub-threshold are mitigated via a selection/combination of circuit replicas driven by a process sensor, at zero testing effort and trimming. A 180-nm testchip shows 1.6% process sensitivity (including wafer-to-wafer variations), 60.7-V/V line sensitivity, and 34.9- V/°C temperature coefficient, leading to 1.4-mV overall accuracy across corner wafers.

A 3.2-pW, 0.2-V Trimming-Less Voltage Reference with 1.4-mV Across-Wafer Total Accuracy

Fassio L.;De Rose R.;Lanuzza M.;Crupi F.;
2021-01-01

Abstract

This work introduces a class of voltage references able to operate down to 3.2 pW and 0.2-V supply for energy harvesting with relaxed or suppressed voltage regulation (direct harvesting). Inherent wafer-to-wafer process sensitivity limitations and effect of process corners in deep sub-threshold are mitigated via a selection/combination of circuit replicas driven by a process sensor, at zero testing effort and trimming. A 180-nm testchip shows 1.6% process sensitivity (including wafer-to-wafer variations), 60.7-V/V line sensitivity, and 34.9- V/°C temperature coefficient, leading to 1.4-mV overall accuracy across corner wafers.
2021
978-1-6654-3751-6
corner-aware
energy harvesting
ultra-low voltage
Voltage reference
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/325854
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 4
social impact