Single stage static level shifter design for subthreshold to I/O voltage conversion

A static subthreshold to I/O voltage level shifter is proposed. The proposed circuit employs a diode-connected pull-up transistor stack and a feedback structure to alleviate the drive strength requirement on the pull-down transistors. The proposed level shifter achieves less than 6 FO4 inverter dela...

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Bibliographic Details
Published in:Proceeding of the 13th international symposium on Low power electronics and design (ISLPED '08) pp. 197 - 200
Main Authors: Lin, Yi-Shiang, Sylvester, Dennis M.
Format: Conference Proceeding
Language:English
Published: New York, NY, USA ACM 11.08.2008
IEEE
Series:ACM Conferences
Subjects:
Delay
Diodes
Energy consumption
Feedback circuits
Hardware > Integrated circuits > Logic circuits > Combinational circuits
Inverters
level shifter
Logic design
Low voltage
Permission
subthreshold
Switches
Temperature
subthreshold
level shifter
ISBN:9781605581095, 1605581097, 9781424486342, 1424486343
Online Access:Get full text
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Summary:A static subthreshold to I/O voltage level shifter is proposed. The proposed circuit employs a diode-connected pull-up transistor stack and a feedback structure to alleviate the drive strength requirement on the pull-down transistors. The proposed level shifter achieves less than 6 FO4 inverter delay under process and temperature variation when converting the input from 300mV to 2.5V. Compared to a conventional DCVS design, the new design consumes 8 times less power and is 10% faster under room temperature.
ISBN:9781605581095
1605581097
9781424486342
1424486343
DOI:10.1145/1393921.1393973