Precision Voltage-Reference (Vref) Total-Error Budget: TCR Box, Solder Shift & 0.1-10Hz Noise

Deterministic Box-method TC_max*(T_max-T_min) + thermal-hysteresis loop + sqrt(t/1000h) Fickian package-stress aging drift & 0.1-10Hz peak-to-peak 1/f noise RSS budget engine (.json, .csv) built for Analog Devices (ADR/LTC6655), Texas Instruments (REF50/REF70), Maxim, Keithley — zero-upload ephemeral Wasm RAM execution.

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