Ultralow Noise XFET® 5.0V Voltage Reference w/Current Sink and Source Capability

Manufactured by:

Product Details

The ADR43x series is a family of XFET voltage references featuring low noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, voltage change vs. temperature nonlinearity in the ADR43x is minimized.

The XFET references operate at lower current (800 µA) and supply headroom (2 V) than buried Zener references. Buried Zener references require more than 5 V headroom for operations. The ADR43x XFET references are the only low noise solutions for 5 V systems.

The ADR43x family has the capability to source up to 30 mA of output current and sink up to 20 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.

The ADR43x is available in 8-lead MSOP and narrow SOIC packages. All versions are specified over the extended industrial temperature range of −40°C to +125°C.

The ADR435-EP Supports defense and aerospace applications (AQEC standard)

  • Precision data acquisition systems
  • High resolution data converters
  • Medical instruments
  • Industrial process control systems
  • Optical control circuits
  • Precision instruments

Product Lifecycle

checked 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.

Reference Designs


X +


CN0305 Circuit Diagram

CN0305 Photo


CN0306 Circuit Diagram

CN0306 Photo


CN0032 Circuit Diagram


CN0374 Circuit Diagram


CN0033 Circuit Diagram


CN0104 Circuit Diagram


CN0240 Circuit Diagram

CN0240 Photo


CN0131 Circuit Diagram


CN0130 Circuit Diagram


CN0123 Circuit Diagram


CN0261 Circuit Diagram

CN0261 Photo


CN0180 Circuit Diagram

CN0180 Photo

Design Resources

X +

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.

ADR435 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints



ADR435 Discussions

Didn't find what you were looking for?

Sample & Buy

Check Inventory

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Price Table Help