Publikācijas 2013 A 0.8-V 110-nA Cmos Current Reference Circuit Using Subthreshold Operation

I. Homjakovs, T. Hirose, Y. Osaki, M. Hashimoto, and T. Onoye, "A 0.8-V 110-nA Cmos Current Reference Circuit Using Subthreshold Operation," IEICE Electronics Express (ELEX), vol. 10, no. 4, March 2013.

Abstract

This paper proposes a low voltage CMOS nano-ampere current reference circuit and presents its performance with circuit simulations in 180-nm technology. The proposed circuit consists of bias-voltage, current-source and offset-voltage sub-circuits with most of MOSFETs operating in subthreshold region. Simulation results show that the circuit generates a stable reference current of 110-nA in supply voltage range of 0.8-1.8-V with line sensitivity of 9250ppm/V. The proposed circuit is useful for composing a voltage reference circuit for ultra-low power applications.

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