Texas Instruments recommends a star-grounded layout with the REF102AU/2K5G4 at the center, and keeping the input and output traces as short as possible to minimize noise and parasitic capacitance.
The REF102AU/2K5G4 has a thermal pad that should be connected to a copper plane on the PCB to dissipate heat. Ensure good thermal conductivity by using a thermal via or a thermal pad with a large copper area.
A 10nF to 100nF ceramic capacitor is recommended to bypass the input pin to ground, depending on the specific application and noise requirements.
The REF102AU/2K5G4 is rated for operation up to 125°C, but its accuracy and stability may degrade at high temperatures. Consider using a more temperature-stable reference voltage source or taking additional thermal management measures.
The REF102AU/2K5G4 requires a minimum of 1ms power-up time to ensure proper initialization. Ensure that the power supply is stable and within the recommended operating range before using the reference voltage output.