ADA4638-1

30V Auto-zero, Rail-to-Rail Output Precision Amplifier
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Product Details

The ADA4638-1 is a high voltage, high precision, zero-drift amplifier featuring rail-to-rail output swing. It is guaranteed to operate from 4.5 V to 30 V single supply or ±2.25 V to ±15 V dual supplies while consuming less than 0.95 mA of supply current at ±5 V.

With an offset voltage of 4 μV, offset drift less than 0.05 μV/°C, no 1/f noise, and input voltage noise of only 1.2 μV p-p (0.1 Hz to 10 Hz), the ADA4638-1 is suited for high precision applications where large error sources cannot be tolerated. Pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over the wide operating temperature range. Many applications can take advantage of the rail-to-rail output swing provided by the ADA4638-1 to maximize the signal-to-noise ratio (SNR).

The ADA4638-1 is specified for the extended industrial (−40°C to +125°C) temperature range and is available in 8-lead LFCSP (3 mm × 3 mm) and SOIC packages.

Applications

  • Electronic weigh scale
  • Pressure and position sensors
  • Strain gage amplifiers
  • Medical instrumentation
  • Thermocouple amplifiers

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.

Evaluation Kits

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Product Details

The Universal Precision Op Amp Evaluation Boards has been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.

  • EVAL-PRAOPAMP-1KSZ (Single 5-Lead SC70) KS-5
  • EVAL-PRAOPAMP-1RJZ (Single 5-Lead SOT 23) RJ-5
  • EVAL-PRAOPAMP-1RMZ (Single 8-Lead MSOP) RM-8
  • EVAL-PRAOPAMP-1RZ (Single 8-Lead SOIC) R-8

Tools & Simulations

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Design Resources

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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.

ADA4638-1 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Overview

4 Reviews
3 out of 3 (100%) customers recommend this product.
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Most Helpful Review

by high gain, supply 30V, Amp
there is no review for this chip and it is pefect for my solution

Most Recent Review

by manan
Its a very good opamp which features single supply as well as double supply operation. Moreover its ultralow offset voltage is quite advantageous for superior performance. Overall its a very effective and easy to use as pin configuration is almost same as opamp-741

All Reviews

by manan, 8 Oct 13
ADA4638
Its a very good opamp which features single supply as well as double supply operation. Moreover its ultralow offset voltage is quite advantageous for superior performance. Overall its a very effective and easy to use as pin configuration is almost same as opamp-741
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by SzymonB, 9 Jul 13
Very good product with excellent parameters
This product has great features in electromyography. It provides good measurement of myoelectric signals.
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by tolgasoyata, 27 Jun 13
ada4638
this OPAMP is excelent in that, it only has a 4uV offset. perfect for instrumentation devices. we are using it to measure ECG samples here in our research and are very happy with it. the fact that, it only has 8 pins makes it easy to hand-solder it. ironically, the NC pins help too :)
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by high gain, supply 30V, Amp, 10 Jun 13
stable Amp in small size
there is no review for this chip and it is pefect for my solution
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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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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.