کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

High PSRR, 0.7nW MOSFET-Only Subthreshold Voltage Reference

نویسندگان :

Mohammad Rashtian¹ Mahdi Shahpasandi²

1- دانشکده صنعت هواپیمایی کشوری 2- Civil Aviation Technology College

کلمات کلیدی :

Voltage reference،Line Sensitivity،Power supply ripple rejection،Native transistor

چکیده :

This paper presents a high power supply ripple rejection (PSRR) sub-nano-Watt voltage reference (VR). It utilizes a self-current biasing circuit to reduce the voltage dependency of the output voltage to the power supply. All the transistors work in the subthreshold region for low voltage and power operation. Simulation results using a standard 0.18 µm CMOS process shows a nominal output voltage of 0.150 V with a power supply ripple rejection (PSRR) of -81.5466 dB at Vdd = 1V. The average temperature coefficient (TC) is about 16.51 oC/ppm over a temperature range of 0 oC to 120 oC where the proposed VR consumes 0.72 nW at room temperature. An average line sensitivity (LS) of 0.072 %/V is achieved for the supply voltage range from 0.5 V to 1.8 V.

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