OP497FSZ-REEL

Instrumentation, Op Amps, Buffer Amps Overview

The OP497FSZ-REEL is a quad precision operational amplifier manufactured by Analog Devices Inc., housed in a 16-lead Wide Body SOIC (RW-16) package. It features a maximum offset voltage of 80 μV and an input bias current of 150 pA at 25°C. The device operates on supply voltages ranging from ±2 V to ±20 V with a typical supply current of 625 μA per amplifier. Key electrical parameters include a gain bandwidth product of 500 kHz, a slew rate of 0.15 V/μs, and a common-mode rejection ratio of 135 dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Utilizes superbeta input stage technology with bias current cancellation to maintain picoampere-level bias currents across the full operating temperature range.
• Provides exceptional precision through very low offset voltage and drift characteristics, ensuring high accuracy in signal conditioning applications.
• Offers extremely high open-loop gain and power supply rejection ratios to minimize errors caused by load variations and supply fluctuations.

Instrumentation, Op Amps, Buffer Amps Applications

• Strain gage and bridge amplifiers
• High stability thermocouple amplifiers
• Photocurrent monitors
• Peak detectors

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the ordering suffix REEL corresponds to tape and reel packaging for automated assembly processes. Confirm the specific grade (F or G) required for your application's offset voltage and bias current tolerances. Ensure the component meets RoHS compliance standards if mandated by your manufacturing regulations. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring ultra-low input bias currents over wide temperature ranges, as standard FET inputs may exhibit higher leakage at elevated temperatures. Consider the 16-lead SOIC package dimensions for PCB layout constraints. Evaluate the need for guard rings around input pins to preserve the high input impedance and prevent leakage currents from degrading circuit performance.

Instrumentation, Op Amps, Buffer Amps Part Context

The OP497 belongs to a family of precision operational amplifiers designed for high-performance analog signal processing. It serves as a quad-channel solution compared to single-channel variants like the OP97 or dual-channel versions such as the OP297. The device is engineered to replace older precision amplifiers while offering improved thermal stability and lower power consumption in compact surface-mount packages.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OP497GSZ-REEL

Instrumentation, Op Amps, Buffer Amps FAQ

How does the OP497 maintain low bias currents at high temperatures?

The OP497 employs a superbeta input stage combined with bias current cancellation. This design prevents the exponential increase in leakage current typically seen in FET-input op-amps as temperatures rise above 85°C.

What is the recommended PCB layout practice for the OP497 inputs?

To maintain high input impedance, use guard rings around the input pins operated at a voltage close to the input common-mode voltage. Keep board surfaces clean and consider conformal coating to provide a humidity barrier against leakage currents.