A high-voltage floating level shifter for a multi-stage charge-pump in a standard 1.8 V/3.3 V CMOS process

This paper proposes a high-voltage floating level shifter with a periodically-refreshed charge pump topology. Designed and fabricated in a standard 1.8 V/3.3 V CMOS process, the circuit can withstand shifting voltages from 3 V to 8.5 V with a delay response of 1.8 ns and occupies 0.008 mm2. The prop...

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Bibliographic Details
Authors: Palomeque-Mangut, David, Rodríguez-Vázquez, Ángel, Delgado-Restituto, Manuel
Format: article
Status:Published version
Publication Date:2022
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/336821
Online Access:http://hdl.handle.net/10261/336821
Access Level:Open access
Keyword:Level shifter
Gate driver
CMOS
Charge pump
High-voltage compliance
Description
Summary:This paper proposes a high-voltage floating level shifter with a periodically-refreshed charge pump topology. Designed and fabricated in a standard 1.8 V/3.3 V CMOS process, the circuit can withstand shifting voltages from 3 V to 8.5 V with a delay response of 1.8 ns and occupies 0.008 mm2. The proposed circuit has been used in a multi-stage charge pump for programming its voltage conversion ratio. Experimental results show that the level shifters successfully enable/disable the stages of the charge pump, thus modifying its output voltage between 5.35 V and 12.4 V for an output current of 3 mA.