GB2317728B - Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors - Google Patents

Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors

Info

Publication number
GB2317728B
GB2317728B GB9725965A GB9725965A GB2317728B GB 2317728 B GB2317728 B GB 2317728B GB 9725965 A GB9725965 A GB 9725965A GB 9725965 A GB9725965 A GB 9725965A GB 2317728 B GB2317728 B GB 2317728B
Authority
GB
United Kingdom
Prior art keywords
mos transistors
transconductance amplifier
operational transconductance
quadrant multiplier
employing mos
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
GB9725965A
Other versions
GB9725965D0 (en
GB2317728A (en
Inventor
Katsuji Kimura
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP13046794A external-priority patent/JP2526808B2/en
Priority claimed from JP13046694A external-priority patent/JP2540782B2/en
Application filed by NEC Corp filed Critical NEC Corp
Priority to GB9813755A priority Critical patent/GB2323692B/en
Priority claimed from GB9511970A external-priority patent/GB2290642B/en
Publication of GB9725965D0 publication Critical patent/GB9725965D0/en
Publication of GB2317728A publication Critical patent/GB2317728A/en
Application granted granted Critical
Publication of GB2317728B publication Critical patent/GB2317728B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/164—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using means for evaluating powers, e.g. quarter square multiplier

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
GB9725965A 1994-06-13 1995-06-13 Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors Expired - Fee Related GB2317728B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9813755A GB2323692B (en) 1994-06-13 1995-06-13 Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP13046794A JP2526808B2 (en) 1994-06-13 1994-06-13 Tunable MOS OTA
JP13046694A JP2540782B2 (en) 1994-06-13 1994-06-13 MOS2 quadrant multiplier
GB9511970A GB2290642B (en) 1994-06-13 1995-06-13 Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors

Publications (3)

Publication Number Publication Date
GB9725965D0 GB9725965D0 (en) 1998-02-04
GB2317728A GB2317728A (en) 1998-04-01
GB2317728B true GB2317728B (en) 1998-11-18

Family

ID=27267771

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9725965A Expired - Fee Related GB2317728B (en) 1994-06-13 1995-06-13 Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors
GB9725964A Expired - Fee Related GB2317727B (en) 1994-06-13 1995-06-13 Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9725964A Expired - Fee Related GB2317727B (en) 1994-06-13 1995-06-13 Tunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistors

Country Status (1)

Country Link
GB (2) GB2317728B (en)

Also Published As

Publication number Publication date
GB9725965D0 (en) 1998-02-04
GB2317727A (en) 1998-04-01
GB2317727B (en) 1998-11-18
GB2317728A (en) 1998-04-01
GB9725964D0 (en) 1998-02-04

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Legal Events

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

Effective date: 20030613