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Texas Instruments REF2940AIDBZR — Discrete Semiconductors
Texas Instruments

TI REF2940AIDBZR Voltage Reference, 4.096 V Fixed, ±2%

MPNREF2940AIDBZR
End of Life

Texas Instruments REF2940AIDBZR, Series Voltage Reference, Fixed 4.096 V Output, ±2% Tolerance, 25 mA Output, SOT-23-3 Package, -40°C to 125°C.

$1.35Ref. price · indicative, final on quote
REF2940AIDBZR datasheet
PackagingTO-236-3, SC-59, SOT-23-3
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

REF2940AIDBZR Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Reference typeSeries
Voltage - input4.146V ~ 5.5V
Voltage - output (Min (Fixed))4.096V
Current - output25 mA
Current - supply59µA
Operating temperature-40°C ~ 125°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±2%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 0.1Hz to 10Hz45µVp-p
Noise - 10Hz to 10kHz128µVrms
Temperature coefficient100ppm/°C

Product details

4.096 V series reference in a SOT-23-3

The Texas Instruments REF2940AIDBZR is a series voltage reference with a fixed 4.096 V output, ±2% initial tolerance, and 25 mA output current capability. It operates from a 4.146 V to 5.5 V input rail and draws 59 µA quiescent supply current. The part is housed in a SOT-23-3 package and rated for -40°C to 125°C, making it suitable for industrial sensor interfaces, ADC reference biasing, and precision comparator circuits where board space is tight.

25 mA output — load budget check

The 25 mA output current is the maximum the reference can source.

Active, available, no LTB watch

The REF2940AIDBZR carries an Active product status and is ROHS3 compliant.

Frequently asked questions

Can REF2940AIDBZR be used as a replacement for REF2940AIDBZT?

The REF2940AIDBZR and REF2940AIDBZT share the same electrical specifications and SOT-23-3 package. The difference is the shipping medium — Tape & Reel vs. Cut Tape. Electrically they are identical, so the BZR variant can replace the BZT in the same design.

When sourcing REF2940AIDBZR, what's the closest functional second-source — LM4132AMF-4.1/NOPB?

The LM4132AMF-4.1/NOPB is a higher-precision series reference with ±0.05% tolerance and 20 ppm/°C drift, compared to the REF2940AIDBZR's ±2% and 100 ppm/°C. Both are 4.096 V fixed outputs in SOT-23-3 packages, but the LM4132 is a tighter-grade part for applications requiring better accuracy. The REF2940AIDBZR is the cost-optimized option for designs that can tolerate ±2% initial error.