LMV331TP datasheet(6/12 Pages) 3PEAK

6 / 12 page

LMV331TP / LMV393TP

General Purpose, 1.8V, RRI, Open-Drain Output Comparators

REV1.4

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When Vi is low, the output is also low. For the output to switch from low to high, Vi must rise up to Vtr. When Vi is

high, the output is also high. In order for the comparator to switch back to a low state, Vi must equal Vtf before the

non-inverting input V+ is again equal to Vr.

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)

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RPU

R 

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RPU

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

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hyst

RPU

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

if RPU<<R2

Inverting Comparator with Hysteresis

The inverting comparator with hysteresis requires a three-resistor network that is referenced to the comparator

supply voltage (VDD), as shown in Figure 5.

Figure 5. Inverting Configuration with Hysteresis

When Vi is greater than V+, the output voltage is low. In this case, the three network resistors can be presented as

paralleled resistor R2 || R3 in series with R1. When Vi at the inverting input is less than V+, the output voltage is

high. The three network resistors can be represented as R1 ||R3 in series with R2.

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LMV331TP Datasheet(PDF) 6 Page - 3PEAK INC.