Title:
Bandgap voltage reference circuit element
Document Type and Number:
Japanese Patent JP6323858
Kind Code:
B2
Abstract:
Bandgap voltage reference circuitry capable of operating at very low power supply voltages. The current source for driving the core bandgap voltage reference is implemented with insulated gate field effect transistors having low threshold voltages. Voltage clamp circuitry protects the transistors from power supply voltage variations rising above a predetermined clamp voltage. An output amplifier with output biasing circuitry having a circuit structure similar to that of the core bandgap voltage reference ensures that the bandgap reaches the intended steady state of operation.
Inventors:
Rwan Veu
Elroy Lucero
Elroy Lucero
Application Number:
JP2017032848A
Publication Date:
May 16, 2018
Filing Date:
February 24, 2017
Export Citation:
Assignee:
Texas Instruments Japan Ltd.
Texas Instruments Incorporated
Texas Instruments Incorporated
International Classes:
G05F3/30
Domestic Patent References:
| JP6104175B2 | ||||
| JP7230331A | ||||
| JP2007133533A | ||||
| JP2008516328A | ||||
| JP2003131749A | ||||
| JP2009146116A |
Foreign References:
| US6335614 |
Attorney, Agent or Firm:
Kyozo Katayose
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