ADCMP670

Preliminary Technical Data

Rev. PrB | Page 12 of 14

APPLICATIONS INFORMATION

The ADCMP670 is a dual low power comparators with a build

in 400mV reference that operates from 1.7V to 5.5V. The

comparators are approx 0.8% accurate with a built in hysteresis

of approx 6.5mV. The outputs are open drain capable of sinking

40mA

COMPARATORS AND INTERNAL REFERENCE

Each of the comparators has one input available externally,

comparator A has a noninverting input and comparator B has

an inverting input available. The other comparator inputs are

connected internally to the 400mV reference. The rising input

threshold voltage of the comparators is designed to be equal to

that of the reference (i.e.≈400mV).

ADDING HYSTERESIS

To prevent oscillations at the output caused by noise or slowly

moving signals passing the switching threshold, each

comparator has built-in hysteresis of approximately 6.5mV.

Positive feedback can be used to adjust hysteresis to the

noninverting comparators.