Features and Benefits

  • Ultracompact SC70 and SOT-23-3 packages 
  • Temperature coefficient: 40 ppm/°C (maximum) 
  • 2× the temperature coefficient improvement over the LM4040 
  • Pin compatible with LM4040/LM4050 
  • Initial accuracy: ±0.2% 
  • Low output voltage noise: 18 μVP-P @ 2.5 V output 
  • No external capacitor required 
  • Operating current range: 50 μA to 15 mA 
  • Industrial temperature range: −40°C to +85°C 

Product Details

Designed for space-critical applications, the ADR525/ADR530/ ADR550 are high precision shunt voltage references, housed in ultrasmall SC70 and SOT-23-3 packages. These references feature low temperature drift of 40 ppm/°C, an initial accuracy of better than ±0.2%, and ultralow output noise of 18 μVP-P.

Available in output voltages of 2.5 V, 3.0 V, and 5.0 V, the advanced design of the ADR525/ADR530/ADR550 eliminates the need for compensation by an external capacitor, yet the references are stable with any capacitive load. The minimum operating current increases from a mere 50 μA to a maximum of 15 mA. This low operating current and ease of use make these references ideally suited for handheld, battery-powered applications.

A trim terminal is available on the ADR525/ADR530/ADR550 to allow adjustment of the output voltage over a ±0.5% range, without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out small system errors.

For better initial accuracy and wider temperature range, see the ADR5040/ADR5041/ADR5043ADR5044/ADR5045 family at www.analog.com.


  • Portable, battery-powered equipment
  • Automotive
  • Power supplies
  • Data acquisition systems
  • Instrumentation and process control
  • Energy measurement

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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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