0

1

OUTPUT

STATE

V

+

GND

V

+

2.048V

GND

INP

INN

HYSTP

HYSTN

OUT

1 M:

1%

+

-

+

-

4.91 k:

1%

1 M:

0

1

OUTPUT

STATE

LMP7300

SNOSAT7G – AUGUST 2007 – REVISED OCTOBER 2015

www.ti.com

Feature Description (continued)

Figure 19. Typical Configuration for Negative Hysteresis =

−10 mV

The case for setting only a positive hysteresis is demonstrated in Figure 21.

Figure 20. Connections for Positive Hysteresis = 10 mV

Figure 21. Connections for Positive Hysteresis = 10 mV

In the general case, as demonstrated with both positive and negative hysteresis bands in Figure 22, noise within

these bands has no effect on the state of the comparator output. In Example 1 the noise is well behaved and in

band. The output is clean and well behaved. In Example 2, a significant amount of out of band noise is present;

however, due to hysteresis no false triggers occur on the rising positive or falling negative edges. The hysteresis

forces the signal level to move higher or lower before the output is set to the opposite state.

14

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