OP37AL

Instrumentation, Op Amps, Buffer Amps Overview

The OP37AL is a low-noise, precision, high-speed operational amplifier manufactured by Rochester Electronics. It features a guaranteed low noise of 80nVp-p from 0.1Hz to 10Hz and a low output distortion, making it suitable for professional audio applications. The device offers a slew rate of 17V/µs and a gain-bandwidth product of 63MHz. It provides an exceptionally low input offset voltage of 10µV and excellent CMRR of 126dB. The open-loop gain is 1.8 million. It replaces older models like the 725, OP-07, and SE5534 in circuits with gains greater than five.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Low noise performance with 80nVp-p (0.1Hz to 10Hz) and 3nV/√Hz at 1kHz
• High speed operation with 17V/µs slew rate and 63MHz gain-bandwidth product
• Precision characteristics including 10µV maximum input offset voltage and 0.2µV/°C drift
• High common-mode rejection ratio of 126dB and open-loop gain of 1.8 million

Instrumentation, Op Amps, Buffer Amps Applications

• Microphone preamplifiers
• Tape head preamplifiers
• RIAA phono preamplifiers
• High-speed signal conditioning for data acquisition systems
• Wide-bandwidth instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'AL' against official manufacturer documentation to confirm package type and temperature range specifications. Ensure compatibility with existing circuit designs requiring gains greater than five. Confirm lead-free status if required by project constraints, as historical variants may differ. Cross-reference pinouts with legacy components like the OP-07 or SE5534 during integration planning.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications demanding high-speed amplification with minimal noise contribution. It is optimized for circuits with gains greater than five, offering improved slew rate and bandwidth compared to the OP27. Consider its low drift and offset voltage for precision instrumentation where long-term stability is critical. Evaluate its ability to drive loads into 600Ω impedances for audio-specific requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

Rochester Electronics specializes in sourcing and distributing obsolete and hard-to-find electronic components. The OP37AL represents a continuation of Analog Devices' precision op-amp lineage, providing a reliable alternative to discontinued original equipment manufacturer parts. This component maintains the electrical characteristics of the original design while ensuring supply chain continuity for legacy systems.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

This component serves as a direct replacement for the 725, OP-07, and SE5534 operational amplifiers in circuits designed for gains greater than five.