WO2010062285A8 - Circuit, trim, and layout for temperature compensation of metal resistors in semi-conductor chips - Google Patents

Circuit, trim, and layout for temperature compensation of metal resistors in semi-conductor chips Download PDF

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Publication number
WO2010062285A8
WO2010062285A8 PCT/US2008/084679 US2008084679W WO2010062285A8 WO 2010062285 A8 WO2010062285 A8 WO 2010062285A8 US 2008084679 W US2008084679 W US 2008084679W WO 2010062285 A8 WO2010062285 A8 WO 2010062285A8
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
temperature
temperature compensation
trim
layout
Prior art date
Application number
PCT/US2008/084679
Other languages
French (fr)
Other versions
WO2010062285A1 (en
Inventor
Bernhard Helmut Engl
Original Assignee
Linear Technology Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linear Technology Corporation filed Critical Linear Technology Corporation
Priority to US12/991,540 priority Critical patent/US8390363B2/en
Priority to EP08876475.8A priority patent/EP2356533B1/en
Priority to PCT/US2008/084679 priority patent/WO2010062285A1/en
Priority to CN200880132107.4A priority patent/CN102246115B/en
Priority to TW097145992A priority patent/TWI446132B/en
Publication of WO2010062285A1 publication Critical patent/WO2010062285A1/en
Publication of WO2010062285A8 publication Critical patent/WO2010062285A8/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities

Abstract

A temperature compensation circuit for generating a temperature compensating reference voltage (VREF) may include a Bandgap reference circuit configured to generate a Bandgap reference voltage (VBGR) that is substantially temperature independent and a proportional- to-absolute-temperature reference voltage (VPTAT) that varies substantially in proportion to absolute temperature. The circuit may also include an operational amplifier that is connected to the Bandgap reference circuit and that has an output on which VREF is based. The circuit may also include a feedback circuit that is connected to the operational amplifier and to the Bandgap reference circuit and that is configured so as to cause VREF to be substantially equal to VPTAT times a constant k1, minus VBGR times a constant k2.
PCT/US2008/084679 2008-11-25 2008-11-25 Circuit, reim, and layout for temperature compensation of metal resistors in semi-conductor chips WO2010062285A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US12/991,540 US8390363B2 (en) 2008-11-25 2008-11-25 Circuit, trim and layout for temperature compensation of metal resistors in semi-conductor chips
EP08876475.8A EP2356533B1 (en) 2008-11-25 2008-11-25 Circuit, trim, and layout for temperature compensation of metal resistors in semi-conductor chips
PCT/US2008/084679 WO2010062285A1 (en) 2008-11-25 2008-11-25 Circuit, reim, and layout for temperature compensation of metal resistors in semi-conductor chips
CN200880132107.4A CN102246115B (en) 2008-11-25 2008-11-25 Circuit, reim, and layout for temperature compensation of metal resistors in semi-conductor chips
TW097145992A TWI446132B (en) 2008-11-25 2008-11-27 Circuit, chip, and process for temperature compensation of metal resistors in semi-conductor chips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/084679 WO2010062285A1 (en) 2008-11-25 2008-11-25 Circuit, reim, and layout for temperature compensation of metal resistors in semi-conductor chips

Publications (2)

Publication Number Publication Date
WO2010062285A1 WO2010062285A1 (en) 2010-06-03
WO2010062285A8 true WO2010062285A8 (en) 2010-09-10

Family

ID=41138939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/084679 WO2010062285A1 (en) 2008-11-25 2008-11-25 Circuit, reim, and layout for temperature compensation of metal resistors in semi-conductor chips

Country Status (5)

Country Link
US (1) US8390363B2 (en)
EP (1) EP2356533B1 (en)
CN (1) CN102246115B (en)
TW (1) TWI446132B (en)
WO (1) WO2010062285A1 (en)

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Also Published As

Publication number Publication date
TWI446132B (en) 2014-07-21
EP2356533B1 (en) 2016-06-29
CN102246115B (en) 2014-04-02
CN102246115A (en) 2011-11-16
WO2010062285A1 (en) 2010-06-03
TW201020710A (en) 2010-06-01
EP2356533A1 (en) 2011-08-17
US20110068854A1 (en) 2011-03-24
US8390363B2 (en) 2013-03-05

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