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ADR443 Datasheet

ADR443 Datasheet

Ultralow Noise, LDO XFET® 3.0V Voltage Reference w/Current Sink and Source
Part No.: ADR443
Page: 19 Pages
Size: 481 KB
Manufacturer: Analog Devices, Inc.
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Update Time: 2025-01-24 11:35:33
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ADR443 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
ADR443ARZ Tube 98 ADR443A 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
ADR443ARZ-REEL7 Reel 1000 ADR443A 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
ADR443ARMZ Tube 50 R03 1 8 -40°C ~ 125°C 8-Lead MSOP  
ADR443ARMZ-REEL7 Reel 1000 R03 1 8 -40°C ~ 125°C 8-Lead MSOP  
ADR443BRZ Tube 98 ADR443B 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
ADR443BRZ-REEL7 Reel 1000 ADR443B 1 8 -40°C ~ 125°C 8-Lead SOIC_N  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

ADR443 Datasheet(PDF)

ADR443 Datasheet(Picture)

ADR443 Features

  • Ultralow noise (0.1 Hz to 10 Hz)
    • ADR443: 1.4 μV p-p
  • Superb temperature coefficient
    • A Grade: 10 ppm/°C
    • B Grade: 3 ppm/°C
  • Low dropout operation (supply voltage headroom): 500 mV
  • Input range: (VOUT + 500 mV) to 18 V
  • High output source and sink current
    • +10 mA and −5 mA, respectively
  • Wide temperature range: −40°C to +125°C

ADR443 Applications

  • Precision data acquisition systems
  • High resolution data converters
  • Battery-powered instrumentation
  • Portable medical instruments
  • Industrial process control systems
  • Precision instruments
  • Optical control circuits

ADR443 Description

The ADR443s is a family of XFET® voltage references featuring ultralow 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 ADR443 is greatly minimized.

The XFET references offer better noise performance than buried Zener references, and XFET references operate off low supply voltage headroom (500 mV). This combination of features makes the ADR443 ideally suited for precision signal conversion applications in high-end data acquisition systems, optical networks, and medical applications.

The ADR443 has the capability to source up to 10 mA of output current and sink up to −5 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.

The ADR443 is available in 8-lead MSOP and narrow SOIC packages and offered in two electrical grades. All versions are specified over the extended industrial temperature range of −40°C to +125°C.

ADR443 Related Parts

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