Open AccessSub‐threshold level converter with internal supply feedback for multi‐voltage applications
Author(s) -
Wen Liang,
Wen Haibo,
Zeng Xiaoyang
Publication year - 2017
Publication title -
iet circuits, devices and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 49
eISSN - 1751-8598
pISSN - 1751-858X
DOI - 10.1049/iet-cds.2015.0359
Subject(s) - voltage , overdrive voltage , low voltage , dropout voltage , electrical engineering , logic level , electronic engineering , feedback loop , computer science , voltage regulation , engineering , computer security
A new sub‐threshold level shifter for ultra‐low voltage digital systems is presented in this study. The self‐controlled supply feedback loop is quintessential for this circuit. Measured results from a test chip show that it is capable of realising a voltage conversion from a voltage as low as 0.1–1.2 V reliably, while maintaining an operational frequency of 25.2 kHz, when implemented in a 65‐nm process technology. In addition, it also has ample process variation tolerance and low static power consumption. To support multi‐voltage digital systems, the proposed level converter can up‐convert an input at any voltage with this range to normal voltage domains.