1 Trisomy 13 is a rare condition caused by an extra copy of chromosome 13. 2  Babies with trisomy 13 have many abnormalities, involving nearly every organ system in the body, as well as developmental delay. 3  It is difficult to predict the life expectancy of a baby with trisomy 13.
Freebase(0.00 / 0 votes)Rate this definition: Comparator. In electronics, a comparator is a device that compares two voltages or currents and switches its output to indicate which is larger. They are commonly used in devices such as analog-to-digital converters.
Introduction to comparators, their parameters and basic applications By Radim Smat Introduction After operational amplifiers (op amps), comparators are the most generally used analog, simple integrated circuits. Operational amplifiers are well described in many publications and a lot of information can be found regarding the design and proper use of these devices. On the other hand, information concerning comparators is much harder to find as they are often considered as simple devices.