The LT1118-2.5 source/sink voltage regulator is described. Used as a supply splitter, it provides the designer with an alternative to adding a negative supply. Its advantages over resistive dividers in establishing a virtual ground are explained.
source/sink voltage regulator
Analog signal processing functions embedded in dominantly digital systems usually require the addition of a negative power supply. Although many single supply analog components are available, optimum performance characteristics are often available only in devices that require both positive and negative power supplies. ...