GB2314475B - An operational amplifier filter arrangement - Google Patents

An operational amplifier filter arrangement

Info

Publication number
GB2314475B
GB2314475B GB9613035A GB9613035A GB2314475B GB 2314475 B GB2314475 B GB 2314475B GB 9613035 A GB9613035 A GB 9613035A GB 9613035 A GB9613035 A GB 9613035A GB 2314475 B GB2314475 B GB 2314475B
Authority
GB
United Kingdom
Prior art keywords
operational amplifier
filter arrangement
amplifier filter
arrangement
operational
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.)
Expired - Fee Related
Application number
GB9613035A
Other versions
GB9613035D0 (en
GB2314475A (en
Inventor
Graham Ainsley Dolman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to GB9613035A priority Critical patent/GB2314475B/en
Publication of GB9613035D0 publication Critical patent/GB9613035D0/en
Publication of GB2314475A publication Critical patent/GB2314475A/en
Application granted granted Critical
Publication of GB2314475B publication Critical patent/GB2314475B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H03H11/1269—Filters using the operational amplifier pole
GB9613035A 1996-06-21 1996-06-21 An operational amplifier filter arrangement Expired - Fee Related GB2314475B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9613035A GB2314475B (en) 1996-06-21 1996-06-21 An operational amplifier filter arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9613035A GB2314475B (en) 1996-06-21 1996-06-21 An operational amplifier filter arrangement

Publications (3)

Publication Number Publication Date
GB9613035D0 GB9613035D0 (en) 1996-08-28
GB2314475A GB2314475A (en) 1997-12-24
GB2314475B true GB2314475B (en) 2000-08-23

Family

ID=10795674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9613035A Expired - Fee Related GB2314475B (en) 1996-06-21 1996-06-21 An operational amplifier filter arrangement

Country Status (1)

Country Link
GB (1) GB2314475B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212671A (en) * 1966-08-05 1970-11-18 Walter Farrer Active filters with independent control of the pole and zero locations
US3605032A (en) * 1970-05-04 1971-09-14 Nasa Active rc networks
US4032855A (en) * 1976-10-28 1977-06-28 Advent Corporation Phonograph preamplifier network with infrasonic cutoff response
EP0082024A1 (en) * 1981-12-16 1983-06-22 Racal Recorders Ltd Improvements in and relating to electrical amplifier arrangements
GB2228640A (en) * 1988-02-29 1990-08-29 Micro Video Inc Transimpedance amplifier with noise reduction and bandwith compensation
WO1991007822A1 (en) * 1989-11-09 1991-05-30 Nokia Matkapuhelimet Oy Loop filter for a frequency synthesizer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212671A (en) * 1966-08-05 1970-11-18 Walter Farrer Active filters with independent control of the pole and zero locations
US3605032A (en) * 1970-05-04 1971-09-14 Nasa Active rc networks
US4032855A (en) * 1976-10-28 1977-06-28 Advent Corporation Phonograph preamplifier network with infrasonic cutoff response
EP0082024A1 (en) * 1981-12-16 1983-06-22 Racal Recorders Ltd Improvements in and relating to electrical amplifier arrangements
GB2228640A (en) * 1988-02-29 1990-08-29 Micro Video Inc Transimpedance amplifier with noise reduction and bandwith compensation
WO1991007822A1 (en) * 1989-11-09 1991-05-30 Nokia Matkapuhelimet Oy Loop filter for a frequency synthesizer

Also Published As

Publication number Publication date
GB9613035D0 (en) 1996-08-28
GB2314475A (en) 1997-12-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20001123