Most system designers use voltage references in their circuits. While many will agree that the performance may ultimately be limited by the reference, they are often unclear as to why. With so many reference products available, designers often choose based on a tradeoff between price and precision, using only initial accuracy and TC specs as a measure of precision.
As applications have evolved, so have voltage references. Features such as noise, thermal stability, load and line regulation and size may be just as important as, or more important than, the more obvious precision specifications.
Three new products from LTC, the LT6654, LTC6655 and LT6656, have carefully chosen combinations of features and specifications to make them especially compatible with common types of applications.