JP2000124770A5 - - Google Patents

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Publication number
JP2000124770A5
JP2000124770A5 JP1998295901A JP29590198A JP2000124770A5 JP 2000124770 A5 JP2000124770 A5 JP 2000124770A5 JP 1998295901 A JP1998295901 A JP 1998295901A JP 29590198 A JP29590198 A JP 29590198A JP 2000124770 A5 JP2000124770 A5 JP 2000124770A5
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JP
Japan
Prior art keywords
operational amplifier
amplifier amp
input
inverting input
output
Prior art date
Legal status (The legal status 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 status listed.)
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Application number
JP1998295901A
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English (en)
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JP2000124770A (ja
JP4287928B2 (ja
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Publication date
Application filed filed Critical
Priority to JP29590198A priority Critical patent/JP4287928B2/ja
Priority claimed from JP29590198A external-priority patent/JP4287928B2/ja
Priority to US09/419,455 priority patent/US6388511B1/en
Publication of JP2000124770A publication Critical patent/JP2000124770A/ja
Publication of JP2000124770A5 publication Critical patent/JP2000124770A5/ja
Application granted granted Critical
Publication of JP4287928B2 publication Critical patent/JP4287928B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【０００２】
【従来の技術】
図８は、一般的なアクティブフィルタ回路の構成を示す回路図である。
図８に示すアクティブフィルタ回路の一例であるローパスフィルタＬＰＦは、演算増幅器ＡＭＰ、コンデンサＣ１，Ｃ２、抵抗Ｒ１，Ｒ２から構成されている。
入力信号Ｖinが入力される入力端子Ｔinと演算増幅器ＡＭＰの非反転入力（＋）との間に、抵抗Ｒ１および抵抗Ｒ２が直列接続されている。演算増幅器ＡＭＰの非反転入力（＋）と基準電位ＧＮＤとの間にコンデンサＣ１が接続されている。
抵抗Ｒ１，Ｒ２間の接続点と演算増幅器ＡＭＰの反転入力（−）との間にコンデンサＣ２が接続されている。演算増幅器ＡＭＰの反転入力（−）は出力に接続されて、負帰還がかけられている。演算増幅器ＡＭＰの出力は出力端子Ｔout に接続され、出力端子Ｔout から出力信号Ｖout が取り出される。
JP29590198A 1998-10-16 1998-10-16 フィルタ回路 Expired - Fee Related JP4287928B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP29590198A JP4287928B2 (ja) 1998-10-16 1998-10-16 フィルタ回路
US09/419,455 US6388511B1 (en) 1998-10-16 1999-10-15 Filter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29590198A JP4287928B2 (ja) 1998-10-16 1998-10-16 フィルタ回路

Publications (3)

Publication Number Publication Date
JP2000124770A JP2000124770A (ja) 2000-04-28
JP2000124770A5 true JP2000124770A5 (ja) 2005-11-17
JP4287928B2 JP4287928B2 (ja) 2009-07-01

Family

ID=17826628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29590198A Expired - Fee Related JP4287928B2 (ja) 1998-10-16 1998-10-16 フィルタ回路

Country Status (2)

Country Link
US (1) US6388511B1 (ja)
JP (1) JP4287928B2 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6633197B1 (en) * 2000-10-27 2003-10-14 Marvell International, Ltd. Gate capacitor stress reduction in CMOS/BICMOS circuit
US7167686B2 (en) * 2002-01-25 2007-01-23 Qualcomm Incorporated Wireless communications transceiver: transmitter using a harmonic rejection mixer and an RF output offset phase-locked loop in a two-step up-conversion architecture and receiver using direct conversion architecture
JP2005037897A (ja) * 2003-06-23 2005-02-10 Sanyo Electric Co Ltd 増幅回路
WO2006000984A1 (en) * 2004-06-23 2006-01-05 Koninklijke Philips Electronics N.V. Simplified sallen-key low-pass filter circuit.
JP2006086477A (ja) * 2004-09-17 2006-03-30 Fujitsu Ltd 半導体装置
TWI449009B (zh) * 2005-12-02 2014-08-11 Semiconductor Energy Lab 顯示裝置和使用該顯示裝置的電子裝置
US7705666B1 (en) * 2009-02-04 2010-04-27 United Microelectronics Corp. Filler circuit cell
CN101807912B (zh) * 2009-02-16 2013-04-03 联华电子股份有限公司 填充电路单元
KR102128140B1 (ko) * 2013-04-11 2020-06-29 라이온 세미컨덕터 인크. 하이브리드 전압 조정기를 제공하기 위한 장치, 시스템들 및 방법들
JP6171866B2 (ja) * 2013-11-08 2017-08-02 東洋インキＳｃホールディングス株式会社 距離センサー
US10601311B2 (en) 2018-02-13 2020-03-24 Lion Semiconductor Inc. Circuits and methods for hybrid 3:1 voltage regulators
KR20210132918A (ko) 2020-04-28 2021-11-05 삼성전자주식회사 노이즈 필터링 회로 및 이를 포함하는 전자 회로

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5168180A (en) * 1992-04-20 1992-12-01 Motorola, Inc. Low frequency filter in a monolithic integrated circuit
JPH0746082A (ja) * 1993-07-30 1995-02-14 Nippondenso Co Ltd フィルタ回路
US5412335A (en) * 1994-01-14 1995-05-02 Motorola, Inc. Area-efficient current-input filter, virtual ground circuit used in same, and method therefor
DE4427015C1 (de) * 1994-07-29 1995-11-23 Siemens Ag Schaltungsanordnung zur Störsignalunterdrückung

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