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ADR434 Datasheet

ADR434 Datasheet

Low Noise XFET® Voltage References with Current Sink and Source Capability
Part No.: ADR434
Page: 23 Pages
Size: 1070 KB
Manufacturer: Analog Devices, Inc.
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Update Time: 2025-03-07 16:03:26
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ADR434 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
ADR434ARZ Tube 98 ADR434A 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
ADR434ARZ-REEL7 Reel 1000 ADR434A 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
ADR434ARMZ Tube 50 R16 1 8 -40°C ~ 125°C 8-Lead MSOP  
ADR434ARMZ-REEL7 Reel 1000 R16 1 8 -40°C ~ 125°C 8-Lead MSOP  
ADR434BRZ Tube 98 ADR434B 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
ADR434BRZ-REEL7 Reel 1000 ADR434B 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

ADR434 Datasheet(PDF)

ADR434 Datasheet(Picture)

ADR434 Features

  • 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 Applications

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

ADR434 Description

The ADR434 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 ADR434 XFET references are low noise solutions for 5 V systems.

The ADR434 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 ADR434 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.

ADR434 Related Parts

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