3454894

Information

• Patent Grant
• 3454894

• References
• Source

• Patent Number

  3,454,894

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1969
  55 years ago

• CPC

  • H03F3/4508 - using bipolar transistors as the active amplifying circuit
  • H01L27/0218 - of field effect structures
  • H03F3/45183 - Long tailed pairs
  • H03F3/45735 - Controlling the active amplifying circuit of the differential amplifier
  • H03F2203/45214 - Offset in a differential amplifier being reduced by control of the substrate voltage, the voltage being either fixed or variable
  • H03F2203/45342 - the AAC comprising control means on a back gate of the AAC
  • H03F2203/45496 - the CSC comprising one or more extra resistors

• US Classifications

  • 330 - Amplifiers
  • 257 - Active solid-state devices