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Analog ElectronicsOperational Amplifier Applications

An ideal transimpedance amplifier has Rf=100 kOhm and receives +20 microampere into its inverting summing node. Its output is?

  • A+0.2 V
  • B-0.2 V
  • C+2 V
  • D-2 V
Report an error
Correct Answer: D. -2 V
Explanation: For the conventional inverting TIA, Vo=-IinRf=-(20 microampere)(100 kOhm)=-2 V.
Reference: Standard analog electronics: transimpedance numerical
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