10

LT1713/LT1714

Figure 2. Various Configurations for Introducing Hysteresis

–

+

50k

50

Ω

Q

Q

(ALL 3 CASES)

Q

Q

–

+

50k

50

Ω

Q

Q

–

+

100k

100k

+

–

50

Ω

50

Ω

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