Low power Schmitt trigger circuit

Abstract

Three new Schmitt trigger circuits are described. The first circuit is a truly low power, while the second and third circuits are derived from the first circuit and provide smaller hysteresis width. Measurement results for the new Schmitt trigger circuits are presented. All the designed circuits are simulated using HSPICE with level 28 model parameters for a 1.2 μm standard CMOS technology. An application to the design of low power, very low frequency integrator oscillators is described