CIRCUIT060078

Non-inverting comparator with hysteresis circuit

CIRCUIT060078

Overview

Comparators are used to differentiate between two different signal levels. With noise, signal variation, or slow-moving signals, undesirable transitions at the output can be observed with a constant threshold. Setting upper and lower hysteresis thresholds eliminates these undesirable output transitions. This circuit example will focus on the steps required to design the positive feedback resistor network necessary to obtain the desired hysteresis for a non-inverting comparator application.
Features
  • Output:
    • Vo = HIGH
    • Vi > V_H
    • Vo = LOW
    • Vi < V_L
  • Thresholds:
    • V_H = 1.7 V
    • V_L = 1.3 V
    • V_HYS = 400 mV
  • Supply:
    • Vcc = 3 V
    • V_PU = 3 V
    • Vref = 3 V
Comparators
TLV1701 Single high voltage, low power comparator TLV7011 Low power, small size comparator with push-pull output TLV7041 Nanopower, small size comparator with open-drain output

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Type Title Date
* Circuit design Non-inverting comparator with hysteresis circuit (Rev. A) Aug. 15, 2019

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