Linear Circuit Design Handbook

SECTION 6-4 Defining the Specifications

In specifying a converter there are basically two sets of specifications used for data converters. They can simplistically be divided into DC and AC specifications. Which you are more concerned with is based primarily on the application. DC specifications are more common with lower frequency applications. Here we are measuring against a reference. In AC specifications we are less concerned with absolute accuracy and more concerned with relative accuracy. This is not to say the reference is unimportant. It is just that we are typically interested in a relative number rather than an absolute. Distortion is always relative to the fundamental, for instance. While there is no direct conversion between the ...