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Analog ElectronicsTransistor Amplifiers

A BJT biased at IC = 2 mA has transconductance gm approximately equal to what, using VT = 25 mV?

  • A8 mS
  • B20 mS
  • C40 mS
  • D80 mS
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Correct Answer: D. 80 mS
Explanation: gm = IC/VT = 0.002/0.025 = 0.08 S = 80 mS.
Reference: Standard analog electronics: transistor amplifiers
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