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TWI263399B - Amplifier circuit - Google Patents

Amplifier circuit

Info

Publication number
TWI263399B
TWI263399B TW94120011A TW94120011A TWI263399B TW I263399 B TWI263399 B TW I263399B TW 94120011 A TW94120011 A TW 94120011A TW 94120011 A TW94120011 A TW 94120011A TW I263399 B TWI263399 B TW I263399B
Authority
TW
Taiwan
Prior art keywords
impedance
input node
impedance unit
operational amplifier
amplifier circuit
Prior art date
Application number
TW94120011A
Other languages
Chinese (zh)
Other versions
TW200701628A (en
Inventor
Chao-Cheng Lee
Pao-Cheng Chiu
Chin-Wen Huang
Original Assignee
Realtek Semiconductor Corp
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 Realtek Semiconductor Corp filed Critical Realtek Semiconductor Corp
Priority to TW94120011A priority Critical patent/TWI263399B/en
Application granted granted Critical
Publication of TWI263399B publication Critical patent/TWI263399B/en
Publication of TW200701628A publication Critical patent/TW200701628A/en

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  • Amplifiers (AREA)

Abstract

An amplifier circuit includes an operational amplifier, a first impedance unit, a second impedance unit and a third impedance unit. The operational amplifier includes a first input node, a second input node, and a first output node for outputting a first output signal. The first impedance unit is coupled to the first input node for providing a first impedance. A first input signal is transmitted to the first input node through the first impedance unit. The second impedance unit is coupled to the first input node and the first output node for providing a second impedance. The third impedance unit is coupled to the first input node of the operational amplifier and the second input node of the operational amplifier for providing a third impedance.
TW94120011A 2005-06-16 2005-06-16 Amplifier circuit TWI263399B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94120011A TWI263399B (en) 2005-06-16 2005-06-16 Amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94120011A TWI263399B (en) 2005-06-16 2005-06-16 Amplifier circuit

Publications (2)

Publication Number Publication Date
TWI263399B true TWI263399B (en) 2006-10-01
TW200701628A TW200701628A (en) 2007-01-01

Family

ID=37966363

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94120011A TWI263399B (en) 2005-06-16 2005-06-16 Amplifier circuit

Country Status (1)

Country Link
TW (1) TWI263399B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI781838B (en) * 2021-12-01 2022-10-21 嘉雨思科技股份有限公司 Signal feedback gain circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI781838B (en) * 2021-12-01 2022-10-21 嘉雨思科技股份有限公司 Signal feedback gain circuit

Also Published As

Publication number Publication date
TW200701628A (en) 2007-01-01

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Legal Events

Date Code Title Description
MK4A Expiration of patent term of an invention patent