Alternative Parts


Features and Benefits

  • +2.5 Volt Output: ±0.05% Max
  • Low Temperature Coefficient: 10 ppm/°C Max
  • Excellent Regulation 
  • Load Regulation: 20 ppm/mA Max
  • Line Regulation: 2 ppm/V Max
  • Supply Current: 450µA Max
  • Temperature Voltage Output: +1.9mV/°C
  • Operating Voltage Range: +4.5V to +40V
  • Extended Industrial Temp Range: -40°C to +85°C
  • Available in Die Form

Product Details

The REF43 is a low-power precision reference providing a stable +2.5V output independent of variations in supply voltage, load conditions or ambient temperature. It is suitable as a reference level for 8-, 10- and 12-bit data acquisition systems, or wherever a stable, known voltage is required.

Tight output tolerances and low thermal drift are assured by zener-zap trimming of both output voltage and its temperature coefficient. A unique curvature correction circuit reduces the thermal curvature which is characteristic of many previous bandgap references.

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy

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