Adjustable shunt reference for precision bias and ADC references
The shunt topology means it behaves like a Zener diode — it sinks current from a supply through a bias resistor, regulating the voltage at the cathode.
Output range and bias resistor sizing
The minimum output is 1.212 V; the maximum is 10 V. The cathode current must stay between 75 µA and 12 mA.
Noise performance for precision measurement
That is low enough for 12-bit ADC references without additional filtering in most industrial signal chains. If the application uses a 10 V output, the noise scales with the output voltage — the 20 µVrms figure is at the bandgap level; expect proportionally higher noise at the programmed output. A 0.1 µF bypass cap at the cathode pin helps suppress high-frequency noise coupled from the supply.
SOT-23-3 package and board integration
The part comes in a three-lead SOT-23-3 (TO-236-3, SC-59) package. The small footprint suits dense mixed-signal boards.