It is used as a voltage reference and is controlled by Precision.The handy Tube variable is used in this program.8 pins are included in the voltage reference ic.
REF430-803ZXRAYS Features
REF430-803ZXRAYS Applications
There are a lot of Analog Devices REF430-803ZXRAYS Voltage Reference applications.
Suitable for use with a wide range of video RAMDACs