Datasheet

10
LT1713/LT1714
Figure 2. Various Configurations for Introducing Hysteresis
–
+
50k
V
IN
50Ω
Q
Q
V
+
= 5V
V
–
= –5V
V
HYST
= 5mV
(ALL 3 CASES)
Q
Q
–
+
50k
V
IN
V
REF
50Ω
Q
Q
–
+
100k
100k
V
IN
+
V
IN
–
50Ω
50Ω
171314 F02
LT1713
LT1713 LT1713
Hysteresis
Another useful technique to avoid oscillations is to provide
positive feedback, also known as hysteresis, from the
output to the input. Increased levels of hysteresis, how-
ever, reduce the sensitivity of the device to input voltage
levels, so the amount of positive feedback should be
tailored to particular system requirements. The
LT1713/LT1714 are completely flexible regarding the ap-
plication of hysteresis, due to rail-to-rail inputs and the
complementary outputs. Specifically, feedback resistors
can be connected from one or both outputs to their
corresponding inputs without regard to common mode
considerations. Figure 2 shows several configurations.
APPLICATIO S I FOR ATIO
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