Dual-output precision reference for automotive sensor chains
The Texas Instruments REF2030QDDCRQ1 is a series voltage reference delivering two fixed outputs — 1.5 V and 3 V — from a single 2.28 V to 5.5 V input rail. It holds initial tolerance to ±0.05% and temperature drift to 8 ppm/°C, which keeps ADC references and sensor bias rails stable across the full -40°C to 125°C automotive temperature range. The AEC-Q100 qualification (Automotive, AEC-Q100 series) qualifies it for under-hood and chassis-domain electronics where reliability screening is mandatory. Output is rated for 20 mA, enough to bias multiple precision amplifiers or a small SAR ADC reference input. Supply current sits at 460 µA, making it a fit for always-on modules that cannot burn regulator-level quiescent current.
What the ratings mean for the BOM
The 1.5 V and 3 V outputs are fixed — no external resistor divider sets them. The ±0.05% initial tolerance and 8 ppm/°C drift keep the output stable over temperature.
Package and footprint
Housed in a SOT-23-5 Thin package, the part is a surface-mount device. The supplier device package is SOT-23-THIN.
Lifecycle and sourcing
The REF2030QDDCRQ1 carries an Active product status.