PJ431/PJ431A/PJ431B Programmable Precision References
diodes in many applications such as digital voltmeters, power supplies , and op amp circuitry. The 2.5 volt reference makes it convenient to obtain a stable reference from 5.0 volt logic supplies, and since The PJ431, A, B operates as a shunt regulator, it can be used as either a positive or negative tage reference.
IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 volts with two external resistors. These devices exhibit a wide operating current range of 1.0 to 1.