REF02BU/2K5

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REF02BU/2K5

+Nomenclature

IC VREF SERIES 0.2% 8SOIC

  • FabricantTexas Instruments

  • Pièce fabricant #REF02BU/2K5

  • Package SOIC-8

  • En stock2792

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Spécifications

Attribut Valeur
Package / Case Tape & Reel (TR),Cut Tape (CT),Bulk
Series REF02
Part Status Active
Reference Type Series
Output Type Fixed
Voltage - Output (Min/Fixed) 5V
Current - Output 21 mA
Tolerance ±0.2%
Temperature Coefficient 10ppm/°C
Noise - 01 Hzto10 Hz 4µVp-p
Voltage - Input 8V ~ 40V
Supply Current 1.4mA
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Présentation

Description

REF02BU/2K5 is a precision 2.5 V voltage reference (the REF02 family). The BU suffix indicates the packaging variant, and 2K5 confirms a 2.5 V output. It provides a stable reference voltage with low drift and low noise for analog circuits, ADCs/DACs, and instrumentation. Key points:
- Requires a supply higher than the output (typical 5–30 V) and proper decoupling on the output.
- Offers good line and load regulation, low temperature coefficient, and protection features.
- Should be used as the reference input for ADCs/DACs or precision comparators; requires a minimum load/current per the datasheet.
For exact numbers (tolerances, TC, noise, min load, etc.), consult the specific BU variant datasheet.

Equivalent

Equivalents for REF02BU/2K5 (2.5 V fixed reference) include:
- LM336-2.5 (2.5 V shunt reference)
- LM385-2.5 (2.5 V shunt reference)
- LM4040-2.5 (2.5 V fixed reference)
- LT6650-2.5 / LT6654-2.5 (precision 2.5 V references)
Note: check pinout, current draw, and package differences; some are shunt types.

Features

REF02BU/2K5 features:
- Fixed 2.5 V precision voltage reference.
- Tight initial accuracy with low temperature coefficient for stable output across temperature.
- Low output noise suitable for ADC/DAC reference use.
- Low dynamic impedance with excellent line and load regulation.
- Capable of sourcing/sinking modest output current for reference-driven circuitry.
- Wide operating voltage range with good power-supply rejection.
- Excellent long-term stability and reliability.
- Available in compact packages (BU variants in TO-92 and SMT) for easy PCB integration.

Pinout

- Pin count: 8 pins (DIP-8/SO-8 package)
- Function: Precision buffered 2.5 V voltage reference (REF02 family). It provides a stable 2.5 V reference output suitable for ADC/DAC reference usage; includes internal buffering for drive capability. The “2K5” indicates 2.5 V output; BU denotes the package variant.

Manufacturer

Analog Devices, Inc. (ADI). ADI is a global American semiconductor company that designs and manufactures high-performance analog, mixed-signal, and DSP integrated circuits.

Application

Typical application areas for REF02BU/2K5 (2.5 V reference):
- Precision ADC/DAC reference in instrumentation, data acquisition, and test equipment
- Calibration standard for voltmeters, DMMs, and calibration rigs
- Front-end reference for precision op-amps, instrumentation amplifiers, and bridge circuits
- Sensor conditioning and bridge-based sensors (strain gauges, RTDs, thermistors)
- Portable/bench-top instruments needing a compact, low-drift, low-noise reference
- Any system requiring a stable 2.5 V reference for digital/analog circuits or microcontroller interfaces

Package

An 8-pin plastic DIP (DIP-8) package.

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