It depends which of the Burr-Brown DACs you are referring to. They (BB) offer a number of delta-sigma devices that are capable of processing 24-bit sample sizes. As most of these devices are very to extremely inexpensive, there performance is not particularly impressive. Burr-Brown also fabricates one of the finest 24-bit devices ever conceived. The PCM1704 is a device that handily exceeds the performance of the UA modules in every area of interest. Keep in mind that the difference in manufacturing costs between the entry level and state-of-the-art Burr-Brown devices are at least 50:1. Not all things that are 24-bit capable are necessarily high performance. Kevin Halverson
