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Analog ElectronicsSwitched-Capacitor Circuits

A 10 pF switched capacitor clocked at 100 kHz emulates an approximate resistance of?

  • A10 kOhm
  • B100 kOhm
  • C1 MOhm
  • D10 MOhm
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Correct Answer: C. 1 MOhm
Explanation: Req=1/(Cf)=1/(10×10^-12×100×10^3)=1×10^6 ohm=1 MOhm.
Reference: Standard analog electronics: switched-capacitor numerical
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