Robust start-up circuit and method for on-chip self-biased voltage and/or current reference

A reference circuit can include a reference section that provides a reference value for other circuits of an integrated circuit and can be enabled and disabled in response to an enable signal. The reference circuit can include at least a first node, draw a reference current in the enabled mode, and...

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Bibliographic Details
Main Authors Krishna, Damaraju Naga Radha, Kothandaraman, Badrinarayanan, Sambatur, Sushma Nirmala
Format Patent
LanguageEnglish
Published 13.05.2008
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Summary:A reference circuit can include a reference section that provides a reference value for other circuits of an integrated circuit and can be enabled and disabled in response to an enable signal. The reference circuit can include at least a first node, draw a reference current in the enabled mode, and draw essentially no current in the disabled mode. A pulse start-up section can provides a low impedance path between the first node and a first potential for a predetermined duration in response to the reference circuit being enabled. A continuous start-up section can provide a low impedance path between the first node and the first potential based on a logic state of an enable signal.