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Texas Instruments REF3112AIDBZT — Analog & Data Acquisition

REF3112AIDBZT Voltage Reference, 1.25 V Fixed, ±0.2%

MPNREF3112AIDBZT
Active

Texas Instruments REF3112AIDBZT series voltage reference, fixed 1.25 V output, ±0.2% tolerance, 20 ppm/°C drift, 10 mA output, SOT-23-3, -40°C to 125°C.

$3.2000Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

REF3112AIDBZT specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeSeries
Voltage - input1.8V ~ 5.5V
Voltage - output (Min (Fixed))1.25V
Output current10 mA
Current - supply135µA
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 10Hz17µVp-p
Noise - 10Hz to 10kHz24µVrms
Temperature coefficient20ppm/°C

Product details

Fixed 1.25 V series reference for precision bias

The REF3112AIDBZT from Texas Instruments is a fixed-output series voltage reference delivering 1.25 V with ±0.2% initial accuracy and a temperature coefficient of 20 ppm/°C. Its 10 mA output current can bias multiple ADC reference inputs or a DAC reference buffer without an external follower.

Low-frequency noise is specified at 17 µVp-p from 0.1 Hz to 10 Hz, critical for precision measurement chains where 1/f noise limits effective resolution.

Supply headroom and quiescent current

Quiescent supply current is 135 µA typical, making it viable for battery-powered instrumentation where every microamp counts.

Housed in a 3-pin SOT-23-3 (TO-236-3, SC-59) surface-mount package, it fits tight PCB layouts.

Frequently asked questions

What is the output voltage of REF3112AIDBZT?

Output voltage is the primary specification for selecting a voltage reference.

What is the price of REF3112AIDBZT in 1000-piece quantities?

Volume pricing directly impacts BOM cost for procurement decisions.

Where can I buy REF3112AIDBZT?

Buyers need to know authorized distributors to place orders.

Is REF3112AIDBZT RoHS compliant?

Regulatory compliance is mandatory for design and manufacturing.

What is the equivalent or replacement for REF3112AIDBZT?

Buyers often need substitutes for second sourcing or obsolescence management.

What is the lead time for REF3112AIDBZT?

Lead time affects production schedules and inventory planning.