ADR4525

Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference
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Product Details

The ADR45xx series of devices are high precision, low power, low noise voltage references, featuring ± 0.02% maximum initial error, excellent temperature stability and low output noise.

This family of voltage references employs a new core topology for high accuracy, while offering industry-leading temperature stability and noise performance. The devices’ low thermally induced output voltage hysteresis and low long-term output voltage drift also improve system accuracy over time and temperature variations.

A maximum operating current of 950 μA allows the device to be used in portable equipment.

ADR45xx series references are available in a wide range of output voltages, in an SOIC package, all of which are specified over the extended industrial temperature range of -40°C to +125 °C.

APPLICATIONS

  • Precision data acquisition systems
  • High-resolution data converters
  • High-precision measurement devices
  • Industrial instrumentation
  • Medical devices
  • Automotive battery monitoring

Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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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.

ADR4525 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Overview

6 Reviews
6 out of 6 (100%) customers recommend this product.
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Most Helpful Review

by Anonymous
ADR4525: For the piece I got, the extremely high precision for this voltage reference was within the datasheet specs. Of course, I don't yet have experience with the variance in mass production. A drawback against e.g. the AD780 is the behaviour during power-up. While it is possible to get an output voltage from the AD780 that almost follows the input voltage, until it is finally clamped to the reference voltage, things are different for the ADR4525. The ADR4525 actively pulls the output to GND for a certain range of input voltages. Among others, I use the reference voltage from the ADR4525 for an active Zener for the supply rail for circuit protection reasons. When the reference voltage is zero while there is a considerable supply voltage, the active Zener will short the supply. I had to add some circuitry which disables the active Zener below a certain supply voltage. It would be nice if a follow-up device could have a better power-up behaviour.

Most Recent Review

by Hellcat
As a low noise voltage reference i find this one of the best devices today.

All Reviews

by Hellcat, 12 Dec 14
Excellent device
As a low noise voltage reference i find this one of the best devices today.
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by mfuentes, 9 Dec 14
A product with great performance
As other products from Analog Devices, this component shows great performance.
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by Dlouhan, 9 Oct 14
This product has excellent Initial output voltage error
It is very good etalon for my precision applications
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by OE1GCA, 11 Jun 14
Excellent performing Reference
We were searching for a low power 2.500 V reference. This reference, works excellent and has the advantage of a very low voltage drop. Noise and TC is also excellent.
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by Djam, 7 Nov 13
This product has great performance
The performance of this voltage reference device is sufficient enough for the the research i am doing with. It's now tested in strong RF environment as reference voltage in a fast comparator circuit.
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by Anonymous, 25 Sep 12
Probably good precision, but requires care during power-up.
ADR4525: For the piece I got, the extremely high precision for this voltage reference was within the datasheet specs. Of course, I don't yet have experience with the variance in mass production. A drawback against e.g. the AD780 is the behaviour during power-up. While it is possible to get an output voltage from the AD780 that almost follows the input voltage, until it is finally clamped to the reference voltage, things are different for the ADR4525. The ADR4525 actively pulls the output to GND for a certain range of input voltages. Among others, I use the reference voltage from the ADR4525 for an active Zener for the supply rail for circuit protection reasons. When the reference voltage is zero while there is a considerable supply voltage, the active Zener will short the supply. I had to add some circuitry which disables the active Zener below a certain supply voltage. It would be nice if a follow-up device could have a better power-up behaviour.
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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.


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