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LMV331 数据表(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LMV331
功能描述  General Purpose, Low Voltage, TinyPack Comparators
PDF  21 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LMV331 数据表(HTML) 8 Page - National Semiconductor (TI)

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Application Circuits (Continued)
Non-Inverting Comparator with Hysteresis
Non inverting comparator with hysteresis requires a two re-
sistor network, and a voltage reference (V
ref) at the inverting
input. When V
in is low, the output is also low. For the output
to switch from low to high, V
in must rise up to Vin1 where Vin1
is calculated by
When V
in is high, the output is also high, to make the com-
parator switch back to it’s low state, V
in must equal Vref be-
fore V
a will again equal Vref.Vin can be calculated by:
The hysteresis of this circuit is the difference between V
in1
and V
in2.
∆V
in =VccR1/R2
DS100080-25
FIGURE 2. Inverting Comparator with Hysteresis
DS100080-22
DS100080-23
www.national.com
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