The AD8675 precision operational amplifier has ultralow offset, drift, and voltage noise combined with very low input bias currents over the full operating temperature range. The AD8675 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 AD8675 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 AD8675 has very low input bias current and low input current noise.
With typical offset voltage of only 10 μV, offset drift of 0.2 μV/°C, and noise of only 0.10 μV p-p (0.1 Hz to 10 Hz), the AD8675 is perfectly suited for applications where large error sources cannot be tolerated. For applications with even lower offset tolerances, the proprietary nulling capability allows a combination of both device and system offset errors up to 3.5 mV (referred to the input) to be compensated externally. Unlike previous circuits, the AD8675 accommodates this adjustment without adversely affecting the offset drift, CMRR, and PSRR of the amplifier. 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 AD8675 to maximize SNR and dynamic range.
The smaller packages and low power consumption afforded by the AD8675 allow maximum channel density or minimum board size for space-critical equipment.
The AD8675 is specified for the extended industrial temperature range (−40°C to +125°C). The AD8675 amplifier is available in the tiny 8-lead MSOP, and the popular 8-lead, narrow SOIC, RoHS compliant packages. MSOP packaged devices are only available in tape and reel format.Applications
|Title||Content Type||File Type|
|AD8675: 36 V Precision, 2.8 nV/√Hz Rail-to-Rail Output Op Amp Data Sheet (Rev E, 07/2012) (pdf, 360 kB)||Data Sheets|
|AN-940: Low Noise Amplifier Selection Guide for Optimal Noise Performance (pdf, 199 kB)||Application Notes|
|AN-358: Noise and Operational Amplifier Circuits (pdf, 593 kB)||Application Notes|
|CN-0318: 16-Bit, Linear, Ultra Stable, Low Noise, Bipolar ±10 V DC Voltage Source (pdf, 370 kB)||Circuit Note|
|CN-0257: 20-Bit, Linear, Low Noise, Precision, Unipolar +10 V DC Voltage Source (pdf, 353 kB)||Circuit Note|
|CN-0200: 18-Bit, Linear, Low Noise, Precision Bipolar ±10 V DC Voltage Source (pdf, 327 kB)||Circuit Note|
|CN0191: 20-Bit, Linear, Low Noise, Precision, Bipolar ±10V DC Voltage Source (pdf, 178 kB)||Circuit Note|
|CN-0169: How to Achieve High Precision Voltage Level Setting Using the AD5542A/AD5541A 16-Bit Voltage Output DAC (pdf, 457 kB)||Circuit Note|
|iPolar™ - revolutionary new high-voltage analog manufacturing process technology breathes new life into industrial bipolar devices||Technical Articles||HTML|
|Op-Amp Issues--Noise||Analog Dialogue||HTML|
Analog Devices rolls out iPolar signal-conditioning amplifiers
ICs Tackle Industrial Apps With Advanced Trench Technology
(Electronic Design, 6/9/2005)
|System-ready D/A Converters Combine Accuracy with Integrated Precision Reference Conditioning Circuitry (05 Dec 2011)||Press Releases||HTML|
|iPolar 36 V Precision Process Technology for Industrial and Instrumentation Applications||Overview||HTML|
|RAQs index||Rarely Asked Questions||HTML|
|What do I do with the "null pins" on the amplifier if I don't plan to use them?||FAQs/RAQs||HTML|
|Glossary of EE Terms||Glossary||HTML|
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Analog Filter Wizard 2.0
The Analog Filter Wizard™ helps you design a low-pass, high-pass, band-pass or band-stop filter with actual op amps. It then simulates the filter’s performance with these op amps in real time. You can ask the tool to optimize for power, noise, or voltage range, and it will pick op amps and passive components appropriately. Or you can adjust the components manually yourself.
|ADIsim Design/Simulation Tools||HTML|
|AD8675 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.