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Ultralow Noise XFET® Voltage References with Current Sink and Source Capability; Package: SOIC; No of Pins: 8; Temperature Range: Industrial

Ovaga Certification

Brands: Analog Devices, Inc

Mfr.Part #: ADR434BRZ

Datasheet: ADR434BRZ Datasheet (PDF)

Package/Case: SOIC-8

Product Type: Power Management ICs

RoHS Status:

Stock Condition: 3333 pcs, New Original

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ADR434BRZ General Description

The ADR430/ADR431/ADR433/ADR434/ADR435 series is a family of XFET® voltage references featuring low noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., temperature drift curvature correction and extra implanted junction FET (XFET) technology, voltage change vs. temperature nonlinearity in the ADR430/ADR431/ADR433/ADR434/ ADR435 is minimized.

The XFET references operate at lower current (800 μA) and lower supply voltage headroom (2 V) than buried Zener references. Buried Zener references require more than 5 V of headroom for operation. The ADR430/ADR431/ADR433/ADR434/ADR435 XFET references are low noise solutions for 5 V systems.

The ADR430/ADR431/ADR433/ADR434/ADR435 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 ADR430/ADR431/ADR433/ADR434/ADR435 are available in 8-lead MSOP and 8-lead narrow SOIC packages. All versions are specified over the extended industrial temperature range of −40°C to +125°C.



  • Low noise (0.1 Hz to 10.0 Hz): 3.5 μV p-p @ 2.500 V output
  • No external capacitor required
  • Low temperature coefficient
  • A Grade: 10 ppm/°C maximum
  • B Grade: 3 ppm/°C maximum
  • Load regulation: 15 ppm/mA
  • Line regulation: 20 ppm/V
  • Wide operating range
  • ADR434: 6.1 V to 18 V
  • High output source and sink current: 30 mA and −20 mA
  • Wide temperature range: −40°C to +125°C
  • ADR434-EP supports defense and aerospace applications (AQEC standard)
  • Download(pdf)
  • Military temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request


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


Parameter Value Parameter Value
Pin Count 8 Package Category Small Outline Packages
Released Date Dec 28, 2020


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2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


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We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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Datasheet PDF

Preliminary Specification ADR434BRZ PDF Download

Key points

  • The ADR434BRZ is a precision voltage reference chip manufactured by Analog Devices. It provides a highly stable and accurate output voltage of 4.096V with a low temperature coefficient and long-term stability. This chip is commonly used in a wide range of applications that require precise voltage references, such as instrumentation, industrial equipment, and data acquisition systems.
  • Equivalent

    ADR434BRZ is an ultra-low noise, high-precision voltage reference chip by Analog Devices. Equivalent products include TI's REF3030, Maxim Integrated's MAX6100, and Linear Technology's LTC6652. These chips serve as voltage references in a variety of applications, offering similar performance specifications and functionality to the ADR434BRZ.
  • Features

    The ADR434BRZ is a precision voltage reference from Analog Devices. Its features include a low output voltage noise of 700 nV/√Hz and a low output voltage drift of 5 ppm/°C. It also has a wide operating temperature range of -40°C to 125°C and is housed in a small and compact SOT-23 package.
  • Pinout

    The ADR434BRZ is a precision voltage reference IC. It has a pin count of 8, with pin 1 as the VOUT, pin 2 as the NC, pin 3 as the NOT USED, pin 4 as the ADJ, pin 5 as the NC, pin 6 as the GND, pin 7 as the TRIM, and pin 8 as the NC.
  • Manufacturer

    Analog Devices Inc. is the manufacturer of the ADR434BRZ. It is a multinational semiconductor company that specializes in designing and manufacturing analog, mixed-signal, and digital signal processing integrated circuits.
  • Application Field

    The ADR434BRZ is a precision, low noise voltage reference that can be used in various application areas, such as industrial process control, test and measurement equipment, medical devices, and communication systems. It provides a stable and accurate voltage reference, making it suitable for applications that require precise voltage references.
  • Package

    The ADR434BRZ chip is available in a SOIC (Small Outline Integrated Circuit) package type. Its form is Surface Mount and the size is approximately 5.3mm x 6.2mm.

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