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Texas Instruments REF3012AIDBZR — Analog & Data Acquisition

REF3012AIDBZR 1.25V voltage reference, ±0.2%, 75ppm/°C

MPNREF3012AIDBZR
Active

Texas Instruments REF3012AIDBZR, series voltage reference, fixed 1.25V output, ±0.2% tolerance, 75ppm/°C, 50µA supply, 25mA output, SOT-23-3, -40°C to 125°C.

$1.1800Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

REF3012AIDBZR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeSeries
Voltage - input1.8V ~ 5.5V
Voltage - output (Min (Fixed))1.25V
Output current25 mA
Current - supply50µA
Operating temperature-40°C~125°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±0.2%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 0.1Hz to 10Hz14µVp-p
Noise - 10Hz to 10kHz42µVrms
Temperature coefficient75ppm/°C

Product details

1.25V fixed reference — the ADC rail anchor

It operates from an input supply as low as 1.8V up to 5.5V, drawing only 50µA quiescent current while being able to source up to 25mA to the load — a good fit for precision ADC reference inputs or low-power sensor biasing.

Output noise is specified at 14µVp-p over 0.1Hz to 10Hz and 42µVrms over 10Hz to 10kHz — low enough to not limit a 12-bit ADC at 1.25V full scale, but worth checking if you're pushing 16-bit resolution.

SOT-23-3 package — board layout notes

Housed in a standard SOT-23-3 (TO-236-3 / SC-59) surface-mount package, the REF3012AIDBZR fits easily into compact mixed-signal layouts with a 0.95mm pin pitch.

Frequently asked questions

What is the difference between REF3012AIDBZR and REF3012AIDBZT?

Electrically they are identical.