2.5 V shunt reference — fixed output and tolerance
The Texas Instruments LM385BPWE4-2-5 is a shunt voltage reference delivering a fixed 2.5 V output with ±1.5% tolerance. It is designed for precision bias and reference applications where the load current does not exceed 20 mA, and the cathode current floor is 20 µA to maintain regulation.
Output noise is specified at 120 µVrms over a 10 Hz to 10 kHz bandwidth — a level that suits 12-bit to 14-bit ADC references without additional filtering.
