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Texas Instruments REF3025AIDBZR — Analog & Data Acquisition

REF3025AIDBZR Voltage Reference, 2.5V ±0.2%, SOT-23-3

MPNREF3025AIDBZR
Active

Texas Instruments REF3025AIDBZR series voltage reference, fixed 2.5V output, ±0.2% tolerance, 25 mA output, 50 µA supply, 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

REF3025AIDBZR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeSeries
Voltage - input2.55V ~ 5.5V
Voltage - output (Min (Fixed))2.5V
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 10Hz28µVp-p
Noise - 10Hz to 10kHz80µVrms
Temperature coefficient75ppm/°C

Product details

2.5V fixed output, ±0.2% initial accuracy

Initial tolerance is ±0.2%, which sets the baseline accuracy for the downstream ADC or comparator threshold without external trim. Supply current is 50 µA typical, making this reference suitable for battery-powered or always-on circuits where the reference must stay powered between conversions.

Temperature drift and noise floor

Low-frequency noise is 28 µVp-p (0.1 Hz to 10 Hz) and 80 µVrms (10 Hz to 10 kHz). These figures matter when the reference feeds a precision ADC — the noise integrates into the conversion result and the drift shifts the full-scale endpoint across temperature.

Supply headroom and output drive

Maximum output current is 25 mA, enough to bias a handful of ADC reference inputs or a small resistive divider network.

Package and lifecycle

Housed in a SOT-23-3 package (also known as TO-236-3, SC-59).

Frequently asked questions

Is REF3025AIDBZR equivalent to REF3025AIDBZT?

REF3025AIDBZT is the same die in a different packaging option (typically Tape & Reel with a different reel quantity or carrier tape width). The electrical specifications — 2.5V output, ±0.2% tolerance, 50 µA supply current — are identical. The 'R' vs 'T' suffix indicates the reel format; confirm the BOM line's preferred packaging code before ordering.

What is the tolerance of REF3025AIDBZR?

Initial tolerance is ±0.2%.