ADR445ARZ
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Analog Devices Inc. ADR445ARZ

Manufacturer No:
ADR445ARZ
Manufacturer:
Analog Devices Inc.
Package:
Bulk
Description:
IC VREF SERIES 0.12% 8SOIC
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The ADR445ARZ is a part of the ADR440/ADR441/ADR443/ADR444/ADR445 series, a family of XFET voltage references developed by Analog Devices Inc. These voltage references are distinguished by their ultralow noise, high accuracy, and low temperature drift performance. Utilizing Analog Devices' patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, these devices minimize voltage change vs. temperature nonlinearity, making them ideal for precision signal conversion applications.

Key Specifications

ParameterSymbolTest Conditions/CommentsMinTypMaxUnit
Output VoltageVOUTA Grade, VIN = 5.5 V to 18 V, TA = 25°C4.9945.0005.006V
B Grade, VIN = 5.5 V to 18 V, TA = 25°C4.9985.0005.002V
Initial AccuracyVOERRA Grade±6 mVmV
B Grade±2 mVmV
Temperature DriftTCVOUTA Grade, −40°C < TA < +125°C210ppm/°C
B Grade, −40°C < TA < +125°C3ppm/°C
Output Voltage HysteresisVOUT_HYS70ppm
Ripple Rejection RatioRRRfIN = 1 kHz−80dB
Supply Voltage Operating RangeVIN5.518V
Supply Voltage HeadroomVIN − VOUT500mV
Output Current Source/Sink−5 mA to 10 mAmA

Key Features

  • Ultralow noise and high accuracy voltage reference.
  • Low temperature drift performance using patented temperature drift curvature correction and XFET technology.
  • Operates with low supply voltage headroom (500 mV).
  • Capable of sourcing up to 10 mA and sinking up to −5 mA of output current.
  • Includes a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.
  • Available in 8-lead MSOP and narrow SOIC packages.
  • Specified over the extended industrial temperature range of −40°C to +125°C.

Applications

The ADR445ARZ is ideally suited for precision signal conversion applications in various fields, including:

  • High-end data acquisition systems.
  • Optical networks.
  • Medical applications.

Q & A

  1. What is the output voltage of the ADR445ARZ?
    The output voltage of the ADR445ARZ is 5.0V, with an initial accuracy of ±6 mV for the A grade and ±2 mV for the B grade.
  2. What is the temperature drift of the ADR445ARZ?
    The temperature drift of the ADR445ARZ is 2 to 10 ppm/°C for the A grade and 3 ppm/°C for the B grade over the temperature range of −40°C to +125°C.
  3. What is the supply voltage operating range of the ADR445ARZ?
    The supply voltage operating range is from 5.5 V to 18 V.
  4. What is the ripple rejection ratio of the ADR445ARZ?
    The ripple rejection ratio is −80 dB at 1 kHz.
  5. What are the available packages for the ADR445ARZ?
    The ADR445ARZ is available in 8-lead MSOP and narrow SOIC packages.
  6. What is the maximum output current that the ADR445ARZ can source or sink?
    The ADR445ARZ can source up to 10 mA and sink up to −5 mA of output current.
  7. Can the output voltage of the ADR445ARZ be adjusted?
    Yes, the output voltage can be adjusted over a 0.5% range using the trim terminal without compromising performance.
  8. What are the typical applications of the ADR445ARZ?
    The ADR445ARZ is typically used in high-end data acquisition systems, optical networks, and medical applications.
  9. What is the operating temperature range of the ADR445ARZ?
    The operating temperature range is from −40°C to +125°C.
  10. What is the significance of XFET technology in the ADR445ARZ?
    The XFET technology minimizes voltage change vs. temperature nonlinearity and offers better noise performance than buried Zener references.

Product Attributes

Reference Type:Series
Output Type:Fixed
Voltage - Output (Min/Fixed):5V
Voltage - Output (Max):- 
Current - Output:10 mA
Tolerance:±0.12%
Temperature Coefficient:10ppm/°C
Noise - 0.1Hz to 10Hz:2.25µVp-p
Noise - 10Hz to 10kHz:- 
Voltage - Input:5.5V ~ 18V
Current - Supply:3.75mA
Current - Cathode:- 
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number ADR445ARZ ADR445BRZ ADR435ARZ ADR440ARZ ADR441ARZ ADR443ARZ ADR444ARZ ADR445ARMZ
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Active Active Active Active
Reference Type Series Series Series Series Series Series Series Series
Output Type Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed
Voltage - Output (Min/Fixed) 5V 5V 5V 2.048V 2.5V 3V 4.096V 5V
Voltage - Output (Max) - - - - - - - -
Current - Output 10 mA 10 mA 30 mA 10 mA 10 mA 10 mA 10 mA 10 mA
Tolerance ±0.12% ±0.04% ±0.12% ±0.15% ±0.12% ±0.13% ±0.13% ±0.12%
Temperature Coefficient 10ppm/°C 3ppm/°C 10ppm/°C 10ppm/°C 10ppm/°C 10ppm/°C 10ppm/°C 10ppm/°C
Noise - 0.1Hz to 10Hz 2.25µVp-p 2.25µVp-p 8µVp-p 1µVp-p 1.2µVp-p 1.4µVp-p 1.8µVp-p 2.25µVp-p
Noise - 10Hz to 10kHz - - - - - - - -
Voltage - Input 5.5V ~ 18V 5.5V ~ 18V 7V ~ 18V 3V ~ 18V 3V ~ 18V 3.5V ~ 18V 4.6V ~ 18V 5.5V ~ 18V
Current - Supply 3.75mA 3.75mA 800µA 3.75mA 3.75mA 3.75mA 3.75mA 3.75mA
Current - Cathode - - - - - - - -
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-MSOP

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