A New Schmitt Trigger Circuit in a 0.13-μm 1/2.5-V CMOS Process to Receive 3.3-V Input Signals

Shih Lun Chen; Ming-Dou Ker

doi:10.1109/TCSII.2005.850409

A New Schmitt Trigger Circuit in a 0.13-μm 1/2.5-V CMOS Process to Receive 3.3-V Input Signals

Shih Lun Chen, Ming-Dou Ker

Department of Electronics Engineering

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

A new Schmitt trigger circuit, which is implemented by low-voltage devices to receive the high-voltage input signals without gate-oxide reliability problem, is proposed. The new proposed circuit, which can be operated in a 3.3-V signal environment without suffering high-voltage gate-oxide overstress, has been fabricated in a 0.13-μm 1/2.5-V 1P8M CMOS process. The experimental results have confirmed that the measured transition threshold voltages of the new proposed Schmitt trigger circuit are about 1 and 2.5 V, respectively. The new proposed Schmitt trigger circuit is suitable for mixed-voltage input-output interfaces to receive input signals and reject input noise.

Original language	English
Pages (from-to)	361-365
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems I: Regular Papers
Volume	52
Issue number	7
DOIs	https://doi.org/10.1109/TCSII.2005.850409
State	Published - 5 Jul 2005

Keywords

Gate-oxide reliability
input-output (I/O)
mixed-voltage interface
Schmitt trigger

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10.1109/TCSII.2005.850409

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abstract = "A new Schmitt trigger circuit, which is implemented by low-voltage devices to receive the high-voltage input signals without gate-oxide reliability problem, is proposed. The new proposed circuit, which can be operated in a 3.3-V signal environment without suffering high-voltage gate-oxide overstress, has been fabricated in a 0.13-μm 1/2.5-V 1P8M CMOS process. The experimental results have confirmed that the measured transition threshold voltages of the new proposed Schmitt trigger circuit are about 1 and 2.5 V, respectively. The new proposed Schmitt trigger circuit is suitable for mixed-voltage input-output interfaces to receive input signals and reject input noise.",

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