Comparator with Hysteresis plus thermal noise

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Comparator with Hysteresis plus thermal noise

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*The positive feedback generates 2 trip points: One for low-high commutation and one for high-low commutation; *The difference (gap) between this 2 points is called hysteresis; *This behavior prevents false (unwished) commutations caused by noise, stabilizing the output; *The upper trip point (UTP) is: UTP = (R1/R2)*Vsat *The lower trip point (LTP) is: LTP = -(R1/R2)*Vsat *The hysteresis is: H = UTP - LTP H = (R1/R2)*Vsat - [-(R1/R2)*Vsat] H = 2(R1/R2)*Vsat **Vsat - saturation voltage

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Comparator with Hysteresis plus thermal noise (1)

user-582736

Creator

user-582736

6 Circuits

Date Created

1 day, 19 hours ago

Last Modified

1 day, 19 hours ago

Tags

  • opamp
  • comparator
  • hysteresis

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