OP497 Quad Operational Amplifier Overview
The OP497 is a precision quad operational amplifier (op amp) designed by Analog Devices for applications requiring low input bias and offset voltages, high open-loop gain, and low supply current. It can be employed in a broad spectrum of industry configurations, including instrumentation and battery-powered systems.
Key Features
The OP497 features low offset voltage (75 μV max), low offset voltage drift (1.0 uV/°C max), and minimal bias current (<150 pA at 25°C), maintaining stability over the temperature range from -40°C to +85°C. The op amp boasts high open-loop gain (2000 V/mV min), operates on supply voltages from +2 V to +20 V, and offers exceptional power and common-mode rejection (>120 dB). It functions with a low supply current (<625 μA per amplifier) making it suitable for efficient, precision applications.
Applications
The OP497’s precision is tailored for use in strain gage and bridge amplifiers, high-stability thermocouple amplifiers, instrumentation amplifiers, photocurrent monitors, high-gain linearity amplifiers, long-term integrators/filters, sample-and-hold amplifiers, peak detectors, logarithmic amplifiers, and battery-powered applications.
Device Compatibility
The datasheet guides about OP497’s precision and low-power capabilities in comparison to single (OP97) and dual (OP297) op amp configurations, directing users to the respective datasheets for these devices.
Technical Specifications
Specifications are subject to change but are believed to be reliable, with no responsibility taken by Analog Devices for any third-party patent infringements that may arise from its use. The 16-lead SOIC package promotes a space-saving design, and the op amp’s ‘superbeta’ input stage ensures bias current stability across all operating temperatures, contrasting FET input op amps whose bias currents increase with temperature.
Design and Support Information
The datasheet also provides revisions history, detailing updates to features, descriptions, and application information sections. It reflects deletions and edits to ensure the reader has the latest information, including typical performance characteristics, applications information, and guidance on the use of the OP497.
Contact Information
For more detailed information and support, the datasheet lists the contact address of Analog Devices headquarters in Norwood, Massachusetts, and invites inquiries through their website or via fax.
NOTE: This summary has provided insights based on the first two pages of the OP497 datasheet; however, readers are encouraged to review the entire document for comprehensive technical and application details.
References:
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