Patent · US Active

Current-mode bandgap reference with proportional to absolute temperature current and zero temperature coefficient current generation

US9817428B2 · kind B2 · utility

1Cited by
9References
18Claims
0Family size

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Inventors

Key dates

Filing dateJun 30, 2015
Grant dateNov 14, 2017
Priority date—
Expiry dateDec 29, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05F3/267
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

In a current-mode bandgap reference integrated circuit: a bandgap voltage generator is configured to generate a bandgap voltage, a zero-temperature coefficient current generator configured to generate a zero-temperature coefficient current, and a proportional to absolute temperature current generator configured to generate a proportional to absolute temperature current. The integrated circuit includes a first pair of bipolar junction transistors (BJT) comprising a first BJT and a second BJT. The integrated circuit also includes a second pair of bipolar junction transistors, comprising a third BJT and a fourth BJT. The first pair of BJTs matches the second pair of BJTs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.