This paper proposes a novel architecture for the generation of a programmable voltage reference: the background- calibrated (BC)-PVR. Our mixed-signal architecture periodically calibrates a static ultra low-power voltage reference generator, from an accurate bandgap reference. The portion of the chip used for the calibration can be powered down with a programmable duty-cycle. The system aims to fully exploit the small temperature derivative vs time DT of several application domains to minimize the average current consumption. The BC-PVR has been designed and implemented in TSMC 55-nm CMOS technology, and it achieves the largest reported programming reference output ◦range [0.42 - 2.52] V, over the temperature range [-20 , 85] C. The duty-cycle mode allows nanoampere current consumption, and the large design flexibility permits to optimize the system performance for the specific application. These features make the BC-PVR very well-suited for power-constrained electronic systems.

An Ultra Low-Power Programmable Voltage Reference for Power-Constrained Electronic Systems / Caselli, Michele; Tiurin, Evgenii; Stanzione, Stefano; Boni, Andrea. - In: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS. I, REGULAR PAPERS. - ISSN 1558-0806. - 70:2(2022), pp. 618-630. [10.1109/TCSI.2022.3219587]

An Ultra Low-Power Programmable Voltage Reference for Power-Constrained Electronic Systems

Michele Caselli
;
Andrea Boni
2022-01-01

Abstract

This paper proposes a novel architecture for the generation of a programmable voltage reference: the background- calibrated (BC)-PVR. Our mixed-signal architecture periodically calibrates a static ultra low-power voltage reference generator, from an accurate bandgap reference. The portion of the chip used for the calibration can be powered down with a programmable duty-cycle. The system aims to fully exploit the small temperature derivative vs time DT of several application domains to minimize the average current consumption. The BC-PVR has been designed and implemented in TSMC 55-nm CMOS technology, and it achieves the largest reported programming reference output ◦range [0.42 - 2.52] V, over the temperature range [-20 , 85] C. The duty-cycle mode allows nanoampere current consumption, and the large design flexibility permits to optimize the system performance for the specific application. These features make the BC-PVR very well-suited for power-constrained electronic systems.
2022
An Ultra Low-Power Programmable Voltage Reference for Power-Constrained Electronic Systems / Caselli, Michele; Tiurin, Evgenii; Stanzione, Stefano; Boni, Andrea. - In: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS. I, REGULAR PAPERS. - ISSN 1558-0806. - 70:2(2022), pp. 618-630. [10.1109/TCSI.2022.3219587]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2932256
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