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A Simple Sub-1V Voltage Reference
by Peter Lisle Schaeffer
Published on 2017 by

A traditional bandgap reference voltage has a value approximately equal to 1.2V. This is an inconvenient value to obtain in short-channel CMOS circuits where the nominal power supply voltage is 1.2V or lower. Here, a simple circuit is presented to generate a reference voltage between 600mV and 800mV, based on the threshold voltage of a MOS device, which will be suitable for biasing transistors in strong inversion as well as for use in 6-bit data converters needed for high speed data communication systems. The circuit uses a novel, but simple, method for generating the temperature coefficients needed for generating a stable voltage reference across temperature. The core circuit produces a PTAT current that when passed through a diode-connected device, with a CTAT threshold voltage, will produce a voltage that is stable across temperature. The measured results demonstrate an average voltage variation of 4.62mV across five chips, each containing eight voltage reference circuits, and a minimum voltage variation of 1.1mV from 0°C to 80°C. A variation of the proposed circuit replaces the BJTs with MOSFETs to achieve smaller area, and simulation results indicate even less voltage variation across temperature.

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Book ID of A Simple Sub-1V Voltage Reference is ZoFmuwEACAAJ, Book which was written byPeter Lisle Schaefferhave ETAG "3G95CsonCEw"

Book which was published by since 2017 have ISBNs, ISBN 13 Code is and ISBN 10 Code is

Book which have 130 Pages

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