A PVT-independent Schmitt trigger with fully adjustable hysteresis threshold voltages for low-power 1-bit digitization applications

LETTER

Institute of Microelectronics, Peking University">Ke Lin, Institute of Microelectronics, Peking University">Xin’an Wang, Institute of Microelectronics, Peking University">Xing Zhang, Bo Wang, Tingbing Ouyang

Author information

Keywords: body area network, 1-bit digitizer, Schmitt trigger, PVT independence, adjustable hysteresis

JOURNAL FREE ACCESS

2016 Volume 13 Issue 17 Pages 20160650

DOI https://doi.org/10.1587/elex.13.20160650

Browse “Advance online publication” version

Details

Abstract

This paper proposes a process, voltage, temperature (PVT) independent Schmitt trigger with fully adjustable hysteresis threshold voltages. These characteristics are attributed to the proposition of a self-tuning circuit in the inverter-comparator, along with a feedback controlling network for hysteresis characteristic. The proposed Schmitt trigger is designed and fabricated with SMIC 0.13 µm CMOS technology. It has much less power consumption of only 2.51 µW, and features also an adjustable hysteresis threshold voltages ranging from 350 mV to 850 mV at a minimum supply voltage of 1.0 V. All these advantages make it very suitable to work as 1-bit digitization in a low power sensing node.

Corresponding author

Register with J-STAGE for free!