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.
|Title||Content Type||File Type|
|OP27: Low Noise, Precision Operational Amplifier Data Sheet (Rev F, 10/2006) (pdf, 422 kB)||Data Sheets|
|OP27: Military Data Sheet (Rev B, 09/1998) (pdf)||Data Sheets|
|AN-940: Low Noise Amplifier Selection Guide for Optimal Noise Performance (pdf, 199 kB)||Application Notes|
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.
|AN-649: Using the Analog Devices Active Filter Design Tool (pdf, 5301 kB)||Application Notes|
|AN-138: SPICE-Compatible Op Amp Macro-Models (pdf, 838 kB)||Application Notes|
|AN-117: OP-42 Advanced SPICE Macro-Model (pdf, 168 kB)||Application Notes|
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.
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.
|AN-358: Noise and Operational Amplifier Circuits (pdf, 593 kB)||Application Notes|
|AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications (pdf, 538 kB)||Application Notes|
ADI Warns Against Misuse of COTS Integrated Circuits
(pdf, 13 kB)
Invites Customer Participation in Creative Mil/Aero System Solutions
|Op-Amp Issues--Noise||Analog Dialogue||HTML|
Ask The Applications Engineer-25
Op Amps Driving Capacitive Loads
(Analog Dialogue, Vol. 31, No. 2, 1997)
Ask The Applications Engineer-6
(Analog Dialogue, 30th Anniversary Reader Bonus)
(pdf, 196 kB)
Many Analog Devices products can be purchased as Class K die.
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.
|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|
|Title||Content Type||File Type|
|OP27 SPICE Macro-Model||SPICE Models||HTML|
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.