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  1. Technology classes
  2. /H · Electricity
  3. /H03 · Electronic circuitry
  4. /H03F · Amplifiers
  5. /H03F 3/00 · Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
  6. /H03F 3/45 · Differential amplifiers
  7. /H03F 3/45071 · With semiconductor devices only
  8. /H03F 3/45076 · Characterised by the way of implementation of the active amplifying circuit in
  9. /H03F 3/45278 · Using bifet transistors as the active amplifying circuit
  10. /H03F 3/45309 · Complementary long tailed pairs having parallel inputs and being supplied in parallel
  11. /H03F 3/45318
H03F 3/45318

Folded cascode stages

Official title: {Folded cascode stages}

H03F3/45318 (Folded cascode stages) appears on 3 US grants and 2 published applications in this corpus.

Search patents in H03F

Where it sits

  1. HElectricity
  2. H03Electronic circuitry
  3. H03FAmplifiers
  4. H03F 3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
  5. H03F 3/45Differential amplifiers
  6. H03F 3/45071With semiconductor devices only
  7. H03F 3/45076Characterised by the way of implementation of the active amplifying circuit in
  8. H03F 3/45278Using bifet transistors as the active amplifying circuit
  9. H03F 3/45309Complementary long tailed pairs having parallel inputs and being supplied in parallel
  10. H03F 3/45318Folded cascode stages
Granted patents
3
Published applications
2
Assignees
4
Inventors
6
Latest grant
30 Oct 2018

Filings by year

Granted patentsPublished applications
H03F 3/45318: granted patents and published applications per publication year
YearGranted patentsPublished applications
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201811
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202401

1998200820182024

By publication year. Applications have been published since 2001.

Recent patents

  • Operational amplifier30 Oct 2018US 10,116,268 B2Analog Devices Global
  • Input to output stage interface with virtual ground circuitry for rail to rail comparator5 Oct 1999US 5,963,085 ANational Semiconductor Corporation
  • Rail-to-rail input stages with constant g.sub.m and constant common-mode output currents31 Mar 1998US 5,734,297 APhilips Electronics North America Corporation
  • Precision operational amplifier with a floating input stage21 Mar 2024US 2024/0097631 A1Semiconductor Components Industries, LLC
  • Operational amplifier12 Jul 2018US 2018/0198417 A1Analog Devices Global

Most cited

By later US patents
  • Rail-to-rail input stages with constant g.sub.m and constant common-mode output currents31US 5,734,297 APhilips Electronics North America Corporation · 1998
  • Input to output stage interface with virtual ground circuitry for rail to rail comparator5US 5,963,085 ANational Semiconductor Corporation · 1999
  • Operational amplifier4US 10,116,268 B2Analog Devices Global · 2018

Top assignees

Documents
  • ADAnalog Devices Global2
  • National Semiconductor Corporation1
  • PEPhilips Electronics North America Corporation1
  • SCSemiconductor Components Industries, LLC1
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