Comparator with Hysteresis Calculator

Positive Supply Voltage (+Vs):

Negative Supply Voltage (−Vs):

Mode 1: Calculate V_th and V_tl

Resistor Ratio (R₁/R₂):

Reference Voltage (Vref):

Output

High Threshold Voltage (Vth):

Low Threshold Voltage (Vtl):

Hysteresis Voltage:

Mode 2: Calculate R Ratio and Vref

High Threshold Voltage (Vth):

Low Threshold Voltage (Vtl):

Output

Resistor Ratio (R₁/R₂):

Reference Voltage (Vref):

Hysteresis Voltage:

Circuit Design

Schmitt Trigger Comparator with Hysteresis

Equations

\[ \begin{aligned} V_{TH} &= \left(\frac{1+R}{R}\right) V_{REF} \;-\; \left(\frac{1}{R}\right) V_{N},\\[8pt] V_{TL} &= \left(\frac{1+R}{R}\right) V_{REF} \;-\; \left(\frac{1}{R}\right) V_{P},\\[8pt] V_{REF} &= V_{N} \;+\; \left(\frac{R}{1+R}\right)\left(V_{TH}-V_{N}\right),\\[8pt] R &= \frac{V_{P}-V_{N}}{V_{TH}-V_{TL}}. \end{aligned} \]

\[ \begin{array}{r l} V_{P} & = \text{positive supply voltage} \\[4pt] V_{N} & = \text{negative supply voltage} \\[4pt] V_{TH} & = \text{high threshold voltage} \\[4pt] V_{TL} & = \text{low threshold voltage} \\[4pt] V_{REF} & = \text{reference voltage} \\[4pt] R & = \text{resistance ratio }(R_2/R_1) \end{array} \]

Comparator with Hysteresis Calculator

Mode 1: Calculate V_th and V_tl

Output

Mode 2: Calculate R Ratio and Vref

Output

Circuit Design

Equations

Quick Information

Information

Customer Service

Comparator with Hysteresis Calculator

Mode 1: Calculate Vth and Vtl

Output

Mode 2: Calculate R Ratio and Vref

Output

Circuit Design

Equations

Quick Information

Information

Customer Service

Mode 1: Calculate V_th and V_tl