Invention Grant
- Patent Title: Electronic device and method for generating a curvature compensated bandgap reference voltage
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Application No.: US14811896Application Date: 2015-07-29
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Publication No.: US09372496B2Publication Date: 2016-06-21
- Inventor: Matthias Arnold
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Robert D. Marshall, Jr.; Frank D. Cimino
- Priority: DE102010007771 20100212
- Main IPC: G05F3/16
- IPC: G05F3/16 ; G05F3/26 ; G05F3/30

Abstract:
The invention relates to an electronic device with a bandgap reference generator including a first path with series connection of a first bipolar transistor, a first resistor and a second resistor, and a second path with series connection of a second bipolar transistor and a third resistor. The first and second paths are supplied current via a common node through a fourth resistor controlled by an amplifier sensing voltage drops within the first and second paths. A curvature compensation stage compensates for a variation of base emitter voltage of the bipolar transistors by drawing a compensation current from the common resistor node.
Public/Granted literature
- US20150331439A1 Electronic Device and Method for Generating a Curvature Compensated Bandgap Reference Voltage Public/Granted day:2015-11-19
Information query
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