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OP270:  Low Noise Precision Dual Op Amp

Product Details

Newer Alternatives:
  • AD8672 with improved DC accuracy, noise, speed and quiescent power consumption in narrow SOIC and MSOP 8-Lead packages.

The OP270 is a high-performance monolithic dual operational amplifier with exceptionally low voltage noise, 5nV/(root)Hz at 1kHz Max, offering comparable performance to PMI's industry standard OP27.

The OP270 features an input offset voltage below 75µV and offset drift under 1µV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP270 is over 1,500,000 into a 10k Ohm load insuring excellent gain accuracy and linearity, even in high-gain applications. Input bias current is under 20nA which reduces errors due to signal source resistance. The OP270's CMR of over 106dB and PSRR of less than 3.2µV/V significantly reduce errors due to ground noise and power supply fluctuations. Power consumption of the dual OP270 is one-third less than two OP27s, a significant advantage for power concious applications. The OP270 is unity-gain stable with a gain-bandwidth product of 5MHz and a slew rate of 2.4V/µs.

The OP270 offers excellent amplifier matching which is important for applications such as multiple gain blocks, low-noise instrumentation amplifiers, dual buffers, and low-noise active filters.

The OP270 conforms to the industry standard 8-pin DIP pinout. It is pin compatible with the MC1458/1558, SE5532/A, RM4558, and HA5102 dual op amps and can be used to upgrade systems using these devices.

For higher speed applications the OP271, with a slew rate of 8V/µs, is recommended. For a quad op amp, see the OP470.


  • Very Low Noise 5 nV/√Hz @ 1 kHz Max
  • Excellent Input Offset Voltage 75 µV Max
  • Low Offset Voltage Drift 1 µV/°C Max
  • Very High Gain 1500 V/mV Min
  • Outstanding CMR 106 dB Min
  • Slew Rate 2.4 V/µs Typ
  • Gain Bandwidth Product 5 MHz Typ
  • Industry-Standard 8-Lead Dual Pinout

Pin Configuration Diagram for OP270


Title Content Type File Type
OP270: Dual Very Low Noise Precision Operational Amplifier Data Sheet  (Rev E, 02/2010) (pdf, 566 kB) Data Sheets PDF
AN-940: Low Noise Amplifier Selection Guide for Optimal Noise Performance  (pdf, 199 kB) Application Notes PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
ADI Warns Against Misuse of COTS Integrated Circuits  (pdf, 13 kB)
(Revised 1/03)
Invites Customer Participation in Creative Mil/Aero System Solutions
Recommended Reading PDF
Ask The Applications Engineer-25
Op Amps Driving Capacitive Loads

(Analog Dialogue, Vol. 31, No. 2, 1997)
Analog Dialogue HTML
PCN#00-406  (pdf, 14 kB)
Product Change notice for change of Analog Devices, Inc. Aerospace Product Line standard product from 883 Class S to MIL-PRF-38535, level V.
Aerospace Information PDF
Aerospace Dice  (pdf, 196 kB)
(Revised 1/2006)
Many Analog Devices products can be purchased as Class K die.
Aerospace Information PDF
Standard Space Level Products Program  (pdf, 39 kB)
This brochure describes the standard flow and how to order Analog Devices, Inc. standard product for Space Level not available as JAN, or QML. It replaces the Standard Class S brochure.
Aerospace Information PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
OP270 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

OP270 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
5962-8872101PA Status: Production CERDIP GLASS SEAL 8 Mil Tube, 48 $28.75 $27.31 N  Material Info PCN Purchase
OP270EZ Status: Production CERDIP GLASS SEAL 8 Ind Tube, 48 $9.57 $9.09 N  Material Info PCN Purchase
OP270FZ Status: Production CERDIP GLASS SEAL 8 Ind Tube, 48 $7.54 $7.15 N  Material Info PCN Purchase
OP270GP Status: Production 8 ld PDIP 8 Ind Tube, 50 $3.59 $3.23 N  Material Info PCN Purchase
OP270GPZ Status: Production 8 ld PDIP 8 Ind Tube, 50 $3.18 $2.86 Y  Material Info PCN Purchase
OP270GS Status: Production 16 ld SOIC - Wide 16 Ind Tube, 47 $3.59 $3.23 N  Material Info PCN Purchase
OP270GS-REEL Status: Production 16 ld SOIC - Wide 16 Ind Reel, 1000 - $3.23 N  Material Info PCN Purchase
OP270GSZ Status: Production 16 ld SOIC - Wide 16 Ind Tube, 47 $3.18 $2.86 Y  Material Info PCN Purchase
OP270GSZ-REEL Status: Production 16 ld SOIC - Wide 16 Ind Reel, 1000 - $2.86 Y  Material Info PCN Purchase
Price Table Help

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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