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Extending the Voltage Range of a Band Gap Reference Circuit

IP.com Disclosure Number: IPCOM000054954D
Original Publication Date: 1980-May-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Walewski, LG Wylie, TJ [+details]

Abstract

Conventional band-gap circuits can provide a zero temperature coefficient reference voltage only for a voltage value equal to twice the built-in junction voltage. The modified reference circuit shown in the drawing can produce a zero temperature coefficient reference voltage at values not limited to twice the built-in junction voltage of the transistors used.