3 V ±0.1% — the precision anchor for your ADC reference
The REF5030AIDGKR is a 3 V series voltage reference from Texas Instruments that delivers a fixed 3 V output with ±0.1% initial tolerance and an 8 ppm/°C temperature coefficient.
Input headroom and output drive — what the rails need
The input voltage range spans 3.2 V to 18 V, so this reference can run directly off a 5 V or 12 V rail without a series regulator. The 10 mA output current capability is enough to drive the reference input of multiple ADCs plus a small resistive divider for a threshold comparator — but not enough to power an external load like a relay or LED.
Industrial temperature range — qualified for the floor, not just the bench
This part is rated for motor-drive control boards sitting next to IGBT heatsinks, outdoor telecom power supplies seeing diurnal temperature swings, and engine-bay sensor modules. The 8 ppm/°C drift holds the output within 0.1% over the full 165°C span, so the ADC reference does not become the dominant error source as the enclosure warms up.
Package and footprint — 8-VSSOP with a common pinout
The REF5030AIDGKR comes in an 8-VSSOP package (also listed as 8-MSOP, 0.118" body width, 3.00 mm width).