REF3040 Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock

REF3040 is a precision 4.096V CMOS voltage reference with 50ppm/°C max drift and 50μA supply current. Features ±0.2% initial accuracy in compact SOT-23-3 package. Ideal for battery-powered instruments, data acquisition, and portable industrial equipment.

ACTIVEIntegrated CircuitVerified Apr 2026
Package / Visual Reference
REF3040SOT23 (3-Pin)
Quick Facts
Manufacturer
Texas Instruments
Package
SOT23 (3-Pin)
Pin Count
3
Lifecycle
ACTIVE
Category
Integrated Circuit
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of REF3040?

  • 50ppm/°C max temperature coefficient for high-precision voltage stability
  • Ultra-low 50μA supply current ideal for battery-powered applications
  • ±0.2% initial accuracy with tight output voltage tolerance
  • Compact SOT-23-3 package minimizing board space
  • Wide input voltage range compatible with single-supply systems

What is REF3040 used for?

The REF3040 is widely used in battery-powered portable instruments where low quiescent current is critical. It serves precision data acquisition systems, ADC/DAC reference circuits, and industrial sensor signal conditioning applications. Its tight accuracy and low drift also make it suitable for medical devices and handheld test equipment.

What are the specifications of REF3040?

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
Country of OriginCountry of Origin

Where can I find the REF3040 datasheet?

REF3040 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for REF3040?

Compatible alternatives and drop-in replacements for REF3040:

REF3040AIDBZTTexas Instruments

Three Terminal Voltage Reference, 1 Output, 4.096V, CMOS, PDSO3

View Part →
REF3240AIDBVTTexas Instruments

Three Terminal Voltage Reference, 1 Output, 4.096V, CMOS, PDSO6

View Part →
REF3140AIDBZRTexas Instruments

Three Terminal Voltage Reference, 1 Output, 4.096V, CMOS, PDSO3

View Part →
REF3140AIDBZTTexas Instruments

Three Terminal Voltage Reference, 1 Output, 4.096V, CMOS, PDSO3

View Part →
REF3240AMDBVREPTexas Instruments

Three Terminal Voltage Reference, 1 Output, 4.096V, CMOS, PDSO6

View Part →

Frequently Asked Questions

How should engineers apply REF3040 in a dense PCB design?

The product record identifies REF3040 with 4.096 V output, so engineers should confirm mating compatibility, signal assignments, and PCB constraints before design release.

Which mechanical detail matters most when laying out REF3040?

Its documented 50 ppm/°C drift is the primary layout reference; procurement should also verify orientation, plating suffixes, packaging format, and the current manufacturer drawing.

Before a production order, what should buyers verify for REF3040?

For production qualification, use the exact ordering code and confirm 4.096 V output against the controlled BOM, because suffix options can affect assembly and lifecycle suitability.

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

AvailabilityIn Stock
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Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

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