EE 230 Electronic Circuits & Systems G. Tuttle

Comparator practice problems
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Read the Comparator class notes.


For the comparator shown,

  • Ra = 8.2 kΩ
  • Rb = 3.9 kΩ
  • Vref = 2 V

The upper output voltage limit of the op amp is VL+ = 7.5 V, and the lower limit is VL- = -7.5 V.

Find VTH, VTL, and the hysteresis width for the comparator.

Answers