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OP27:  Low Noise, Precision Op Amp

Product Details


Newer Alternatives:
  • AD8671 for lower power or AD8675 for lower bias current or ADA4004-1 with higher bandwidth and lower power

The OP27 precision operational amplifier combines the low offset and drift of the OP07 with both high speed and low noise. Offsets down to 25µV and drift of 0.6µV/°C maximum make the OP27 ideal for precision instrumentation applications. Exceptionally low noise, en=3.5 nV/√Hz, at 10 Hz, a low 1/f noise corner frequency of 2.7Hz, and high gain (1.8 million), allow accurate high-gain amplification of low-level signals. A gain-bandwidth product of 8MHz and a 2.8V/µsec slew rate provides excellent dynamic accuracy in high-speed data-acquisition systems.

A low input bias current of ±10nA is achieved by use of a bias-current-cancellation circuit. Over the military temperature range, this circuit typically holds IB and IOS to ±20nA and 15nA respectively.

The output stage has good load driving capability. A guaranteed swing of ±10V into 600 Ohms and low output distortion make the OP27 an excellent choice for professional audio applications.

PSRR and CMRR exceed 120dB. These characteristics, coupled with long-term drift of 0.2µV/month, allow the circuit designer to achieve performance levels previously attained only by discrete designs.

FEATURES and BENEFITS

  • Low Noise: 80 nV p-p (0.1 Hz to 10 Hz),
    3 nV/vHz
  • Low Drift: 0.2 µV/°C
  • High Speed: 2.8 V/µs Slew Rate, 8 MHz Gain Bandwidth
  • Low VOS: 10 µV
  • Excellent CMRR: 126 dB at VCM of ±11 V
  • High Open-Loop Gain: 1.8 Million
  • Fits 725, OP07, 5534A Sockets
  • Available in Die Form

Pin Configuration Diagram for OP27

Documentation

Title Content Type File Type
OP27: Low Noise, Precision Operational Amplifier Data Sheet  (Rev F, 10/2006) (pdf, 422 kB) Data Sheets PDF
OP27: Military Data Sheet  (Rev B, 09/1998) (pdf) Data Sheets PDF
AN-940: Low Noise Amplifier Selection Guide for Optimal Noise Performance  (pdf, 199 kB) Application Notes PDF
AN-109: AB-109: High Speed Precision Rectifier  (pdf, 24 kB)
The low offsets and excellent load driving capability of the OP-27 are key advantages in this precision rectifier circuit.
Application Notes PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes PDF
AN-138: SPICE-Compatible Op Amp Macro-Models  (pdf, 838 kB) Application Notes PDF
AN-117: OP-42 Advanced SPICE Macro-Model  (pdf, 168 kB) Application Notes PDF
AN-112: AB-112: Single Resistor Controls Wien Bridge Oscillator Frequency  (pdf, 18 kB)
Frequency control can be added to the conventional Wien Bridge Circuit by adding an op amp inverter.
Application Notes PDF
AN-111: AB-111: Single-Supply Wien Bridge Oscillator  (pdf, 66 kB)
Wien Bridge Oscillators require only one op amp, important in battery-operation. This circuit operates from a single 9V battery.
Application Notes PDF
AN-358: Noise and Operational Amplifier Circuits  (pdf, 593 kB) Application Notes PDF
AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications  (pdf, 538 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
Op-Amp Issues--Noise Analog Dialogue HTML
Ask The Applications Engineer-25
Op Amps Driving Capacitive Loads

(Analog Dialogue, Vol. 31, No. 2, 1997)
Analog Dialogue HTML
Ask The Applications Engineer-6
Op-Amp Issues

(Analog Dialogue, 30th Anniversary Reader Bonus)
Analog Dialogue HTML
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
What do I do with the "null pins" on the amplifier if I don't plan to use them? FAQs/RAQs HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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

OP27 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
OP27AJ/883C Status: Production ROUND HEADER/METAL CAN 8 Mil Tube, 100 $29.16 $27.71 N  Material Info PCN Purchase
OP27AZ Status: Production CERDIP GLASS SEAL 8 Ind Tube, 48 $29.58 $28.10 N  Material Info PCN Purchase
OP27AZ/883C Status: Production CERDIP GLASS SEAL 8 Mil Tube, 48 $32.15 $30.56 N  Material Info PCN Purchase
OP27EP Status: Last Time Buy 8 ld PDIP 8 Comm. Tube, 50 $3.76 $3.38 N  Material Info PCN/PDN Purchase
OP27EPZ Status: Production 8 ld PDIP 8 Comm. Tube, 50 $3.30 $2.97 Y  Material Info PCN Purchase
OP27EZ Status: Production CERDIP GLASS SEAL 8 Ind Tube, 48 $12.29 $11.68 N  Material Info PCN Purchase
OP27GJZ Status: Production ROUND HEADER/METAL CAN 8 Ind Tube, 100 $9.32 $8.85 Y  Material Info PCN Purchase
OP27GP Status: Last Time Buy 8 ld PDIP 8 Ind Tube, 50 $1.75 $1.37 N  Material Info PCN/PDN Purchase
OP27GPZ Status: Production 8 ld PDIP 8 Ind Tube, 50 $1.55 $1.21 Y  Material Info PCN Purchase
OP27GS Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.75 $1.37 N  Material Info PCN Purchase
OP27GS-REEL Status: Last Time Buy 8 ld SOIC 8 Ind Reel, 2500 - $1.37 N  Material Info PCN/PDN Purchase
OP27GS-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.37 N  Material Info PCN Purchase
OP27GSZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.55 $1.21 Y  Material Info PCN Purchase
OP27GSZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.21 Y  Material Info PCN Purchase
OP27GSZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.21 Y  Material Info PCN Purchase
OP27GZ Status: Production CERDIP GLASS SEAL 8 Ind Tube, 48 $6.97 $6.64 N  Material Info PCN Purchase
OP27NBC Status: Production CHIPS OR DIE 0 Tray, 100 - - Y  Material Info Notify Me Contact ADI
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.

EVAL-OPAMP-1 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-PRAOPAMP-1KSZ Status: Production Single KS-5 lead SC70 Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RJZ Status: Production Single RJ-5 lead SOT23 Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RMZ Status: Production Single RM-8 lead MSOP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-1RZ Status: Production Single R-8 lead SOIC Evaluation Board $20.19 Yes -

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.

Check Inventory & Purchase

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