AD8676

Ultra Precision, 36 V, 2.8 nV/√Hz Dual RRO Op Amp
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Product Details

The AD8676 precision operational amplifier offers ultralow offset, drift, and voltage noise combined with very low input bias currents over the full operating temperature range. The AD8676 is a precision, wide bandwidth op amp featuring rail- to-rail output swings and very low noise. Operation is fully specified from ±5 V to ±15 V.

The AD8676 features a rail-to-rail output like that of the OP184, but with wide bandwidth and even lower voltage noise, com-bined with the precision and low power consumption like that of the industry-standard OP07 amplifier. Unlike other low noise, rail-to-rail op amps, the AD8676 has very low input bias current and low input current noise.

With typical offset voltage of only 12 μV, offset drift of 0.2 μV/°C, and noise of only 0.10 μV p-p (0.1 Hz to 10 Hz), the AD8676 is perfectly suited for applications where large error sources cannot be tolerated. Precision instrumentation, PLL and other precision filter circuits, position and pressure sensors, medical instrumentation, and strain gage amplifiers benefit greatly from the very low noise, low input bias current, and wide bandwidth. Many systems can take advantage of the low noise, dc precision, and rail-to-rail output swing provided by the AD8676 to maxi-mize SNR and dynamic range.

The smaller packages and low power consumption afforded by the AD8676 allow maximum channel density or minimum board size for space-critical equipment.

The AD8676 is specified for the extended industrial temperature range (−40°C to +125°C). The AD8676 is available in the 8-lead MSOP, and the popular 8-lead, narrow SOIC; both of which are lead-free packages. MSOP packaged devices are only available in tape and reel format.

For the single version of this ultraprecision, rail-to-rail op amp, see the AD8675 data sheet.

The AD8675 and AD8676 are members of a growing series of low noise op amps offered by Analog Devices, Inc.

Applications

  • Precision instrumentation
  • PLL filters
  • Laser diode control loops
  • 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-2CPZ (Dual 8-Lead LFCSP) CP-8
  • EVAL-PRAOPAMP-2RMZ (Dual 8-Lead MSOP) RM-8
  • EVAL-PRAOPAMP-2RZ (Dual 8-Lead SOIC) R-8

Tools & Simulations

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Reference Designs

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CN0200 Circuit Diagram

CN0200 Photo

CN0209 Circuit Diagram

CN0209 Photo

CN0191 Circuit Diagram

CN0191 Photo

CN0177 Circuit Diagram

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.

AD8676 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Reviews

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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
This is a very good opamp although, I ended up using a different one. The reason is this: if the input voltage is out of spec at power up (closer than 3V from the supply) it latches up and in some cases it can't be brought back into normal operation.

Most Recent Review

by Anonymous
This ultraprecision op amp has excellent DC performance, low input bias current, very low offset voltage and low noise can competed with zero-drift op amps. Furthermore, it has a reasonable AC performance and cost is also well acceptable.

All Reviews

by Anonymous, 10 Sep 14
Ultraprecision amplifier
This ultraprecision op amp has excellent DC performance, low input bias current, very low offset voltage and low noise can competed with zero-drift op amps. Furthermore, it has a reasonable AC performance and cost is also well acceptable.
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by anubhav, 19 May 14
ad8676
Its a great product with very sharp characteristics. I am using this product for development of low pass and high pass filters. Reponse of this product for high pass and low pass filters is very nice.voltage offset and noice is very low.
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by Anonymous, 12 Aug 13
The most accuracy amplifier I used
Combine with AD5791 give me excellent result. Highly recommended in high precision application.
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by Anonymous, 15 Mar 13
great device
The device has been used into new design of high precision low noise bias generator. We are evaluating this design now as prototype. Without comments so far.
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by Anonymous, 2 Jan 13
Verry good, but be careful
This is a very good opamp although, I ended up using a different one. The reason is this: if the input voltage is out of spec at power up (closer than 3V from the supply) it latches up and in some cases it can't be brought back into normal operation.
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by Anonymous, 29 Sep 12
It was a "workhorse" for my job.
Dear Sir, Dear Madam, I'm on the third design for a 10 amp power source to drive a coil. The challenge is a current constancy of better than 10 ppm / ° C. it will take about two months for the first measurement results. I'll report back.
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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.