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REF2930AIDBZR

3.0V precision voltage reference, 0.05% accuracy, 8ppm/C tempco, SOT-23-3

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Manufacturer Part：

REF2930AIDBZR

Package：

3-SOT-23 (2.92 x 1.30 mm)

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Description

Product Overview

The REF2930AIDBZR is a Texas Instruments 3.0 V, 100 ppm/°C, 50 µA CMOS series voltage reference in a 3-pin SOT-23 package. It features 1 mV dropout voltage, 25 mA output current, 2% initial accuracy, and stable operation with any capacitive load. The device operates from -40°C to +125°C.

Key Specifications

Output Voltage 3.0 V (fixed)
Initial Accuracy 2%
Temperature Drift 100 ppm/°C (max)
Dropout Voltage 1 mV (typical)
Output Current 25 mA
Quiescent Current 50 µA (max)

Features

  • MicroSIZE 3-pin SOT-23 package
  • 1 mV dropout voltage
  • 25 mA output current
  • 100 ppm/°C temperature drift (max)
  • 50 µA maximum quiescent current
  • Stable with any capacitive load
  • 2% initial accuracy

Applications

  • ADC and DAC voltage reference
  • Battery-powered portable instruments
  • Data acquisition systems
  • Sensor excitation reference

The Texas Instruments REF2930AIDBZR is a 3.0V precision voltage reference featuring 0.05% initial accuracy and 8 ppm/C temperature coefficient in a tiny SOT-23-3 package. The device uses a bandgap reference architecture with trimmed resistors and curvature correction to achieve its low drift specification, providing a stable 3.0V output over the -40C to +85C industrial temperature range. The REF2930A supports supply voltages from 3.05V to 5.5V with a maximum quiescent current of 95 uA, making it suitable for battery-powered and always-on applications. The output can source up to 25 mA and sink up to 10 mA, sufficient to directly drive ADC/DAC reference inputs without external buffering. The 25 uVp-p (0.1-10 Hz) output noise is low enough for 16-bit and higher resolution converter systems. The device is stable with any output capacitor value (including no capacitor), simplifying PCB layout in space-constrained designs.

The REF2930A uses a bandgap voltage reference core that generates a stable voltage based on the predictable relationship between the base-emitter voltage of bipolar transistors (which has a negative temperature coefficient) and the thermal voltage kT/q (which has a positive temperature coefficient). By summing these two complementary temperature-dependent voltages in the correct ratio, the output achieves near-zero temperature drift. During manufacturing, laser-trimmed resistors set the output to 3.000V with 0.05% accuracy, and curvature correction circuits compensate for higher-order temperature effects to achieve the 8 ppm/C specification. The output stage is a class-AB buffer capable of both sourcing and sinking current, maintaining stable output impedance under varying load conditions. The wide supply range (3.05-5.5V) and low Iq (95 uA max) make the device practical for systems where the reference must operate from the same supply rail as the ADC or DAC it serves.

Pin Mnemonic Description
1 OUT Reference output (3.0V)
2 GND Ground
3 IN Supply input (3.05-5.5V)
  • 16-bit ADC reference for precision industrial measurement with 0.05% accuracy and 8ppm/C drift ensuring calibration intervals of 12+ months
  • Portable medical instrument voltage reference consuming only 95uA from 3.3V battery supply
  • DAC reference in process control loop where 25uVp-p noise prevents dither in the control output
  • Low-power IoT sensor node reference with no external capacitor required, minimizing BOM and PCB area
Model Manufacturer Key Difference
REF2933AIDBZR TI 3.3V output version, same specs
REF2925AIDBZR TI 2.5V output version, same specs
LM4140BCMF3.0 TI 3.0V, 0.1% accuracy, higher Iq
ADR3430ARJZ ADI 3.0V, 0.1% accuracy, 8ppm/C, larger package
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

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We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Professional Packaging Standards

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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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