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A LOW POWER SUPPLY AND LOW OUTPUT IMPLEMENTATION OF A BANDGAP REFERENCE VOLTAGE

IP.com Disclosure Number: IPCOM000016731D
Publication Date: 2003-Jul-11

Publishing Venue

The IP.com Prior Art Database

Abstract

ABSTRACT OF THE DISCLOSURE A bandgap reference voltage circuit uses a parallel configuration instead of a series configuration in order to lower the power supply voltage. Moreover, instead of adding two voltages in series in order to obtain the zero temperature coefficient bandgap reference voltage, the circuit generates two currents which are proportional to VBE and KT/q. These two currents are then summed (added) together and converted to a voltage, e.g., through a resistor, in order to obtain a desired bandgap reference voltage that is less than the traditional 1.2 V.