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Texas Instruments LM4040D25QDBZR — Analog & Data Acquisition

Texas Instruments LM4040D25QDBZR 2.5V Shunt Voltage

MPNLM4040D25QDBZR
Active

Texas Instruments LM4040D25QDBZR, precision shunt voltage reference, 2.5V fixed output, ±1% tolerance, 35µVrms noise, 150ppm/°C drift, SOT-23-3 package, -40°C to 125°C.

$1.0800Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM4040D25QDBZR specifications
ParameterValue
Output typeFixed
MountingSurface Mount
Reference typeShunt
Voltage - output (Min (Fixed))2.5V
Output current15 mA
Current - cathode80 µA
Operating temperature-40°C~125°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Tolerance±1%
CaseTO-236-3, SC-59, SOT-23-3
Noise - 10Hz to 10kHz35µVrms
Temperature coefficient150ppm/°C

Product details

2.5 V shunt reference with ±1% initial accuracy

The shunt architecture allows the reference to sink or source current through an external resistor, with a maximum output current of 15 mA and a cathode current of 80 µA.

Housed in a SOT-23-3 package (also known as TO-236-3 or SC-59), this part uses a standard three-pin footprint. The small body saves board area in space-constrained designs like sensor modules or portable instrumentation.

The base product number LM4040 covers a wide family of voltage options and tolerance grades, so a pin-compatible drop-in for a different output voltage or tighter accuracy is a straightforward BOM adjustment within the same footprint.

Frequently asked questions

What is the output voltage and accuracy of LM4040D25QDBZR?

Buyers need to confirm the voltage reference value and tolerance to match circuit requirements.

Where can I buy LM4040D25QDBZR in stock?

Sourcing buyers need to find available inventory quickly for production or prototypes.

Is LM4040D25QDBZR still active or obsolete?

Ensures long-term availability for design and avoids last-time buy situations.

What is the price of LM4040D25QDBZR per unit in volume?

Pricing is a key factor for buyers comparing suppliers and budgeting.

What is the package and footprint of LM4040D25QDBZR?

Design engineers need to verify the SOT-23-3 package fits their PCB layout.

What is the equivalent or alternative to LM4040D25QDBZR?

Buyers and designers look for drop-in replacements or cross references for sourcing flexibility.