TW200618460A - Operational amplifier with frequency compensation circuit - Google Patents

Operational amplifier with frequency compensation circuit

Info

Publication number
TW200618460A
TW200618460A TW093136259A TW93136259A TW200618460A TW 200618460 A TW200618460 A TW 200618460A TW 093136259 A TW093136259 A TW 093136259A TW 93136259 A TW93136259 A TW 93136259A TW 200618460 A TW200618460 A TW 200618460A
Authority
TW
Taiwan
Prior art keywords
differential
frequency compensation
pair
operational amplifier
compensation circuit
Prior art date
Application number
TW093136259A
Other languages
Chinese (zh)
Other versions
TWI237441B (en
Inventor
Yuan-Kai Chu
Original Assignee
Himax Tech Inc
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 Himax Tech Inc filed Critical Himax Tech Inc
Priority to TW93136259A priority Critical patent/TWI237441B/en
Application granted granted Critical
Publication of TWI237441B publication Critical patent/TWI237441B/en
Publication of TW200618460A publication Critical patent/TW200618460A/en

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  • Amplifiers (AREA)

Abstract

An operational amplifier with frequency compensation circuit is provided. The operational amplifier includes first/second differential amplifying pairs and first/second frequency compensation circuits. The first differential amplifying pair includes a first differential gain circuit and a first differential input pair, and the second differential amplifying pair includes a second differential gain circuit and a second differential input pair. The first/second frequency compensation circuits respectively include a resistor and a capacitor that is serially connected to the resistor. One end of the first frequency compensation circuit connects to a point in the transmission path, which transmits positive signal, between the first differential gain circuit and the first differential input pair, and another end connects to a positive signal output terminal of the second differential amplifying pair. Further, one end of the second frequency compensation circuit connects to a point in the transmission path, which transmits negative signal, between the first differential gain circuit and the first differential input pair, and another end connects to a negative signal output terminal of the second differential amplifying pair.
TW93136259A 2004-11-25 2004-11-25 Operational amplifier with frequency compensation circuit TWI237441B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93136259A TWI237441B (en) 2004-11-25 2004-11-25 Operational amplifier with frequency compensation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93136259A TWI237441B (en) 2004-11-25 2004-11-25 Operational amplifier with frequency compensation circuit

Publications (2)

Publication Number Publication Date
TWI237441B TWI237441B (en) 2005-08-01
TW200618460A true TW200618460A (en) 2006-06-01

Family

ID=36821455

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93136259A TWI237441B (en) 2004-11-25 2004-11-25 Operational amplifier with frequency compensation circuit

Country Status (1)

Country Link
TW (1) TWI237441B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI426704B (en) * 2005-11-02 2014-02-11 Marvell World Trade Ltd Amplifiers with compensation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI426704B (en) * 2005-11-02 2014-02-11 Marvell World Trade Ltd Amplifiers with compensation

Also Published As

Publication number Publication date
TWI237441B (en) 2005-08-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees