LF351MX

Overview

The LF351MX is a high-speed JFET input single operational amplifier manufactured by onsemi. It incorporates well-matched, high-voltage JFET and bipolar transistors in a monolithic integrated circuit. The device features a typical slew rate of 16 V/µs, an internal frequency compensation design, and low input bias current. It offers wide common-mode and differential voltage ranges, output short-circuit protection, and latch-up-free operation.

Feature Summary

• High slew rate performance for fast signal processing
• Low input bias and offset currents due to JFET input stage
• Internal frequency compensation simplifies circuit design
• Output short-circuit protection ensures robust operation

Applications

• High-speed analog signal conditioning circuits
• Precision instrumentation amplifiers
• Active filter designs requiring low input bias
• Voltage follower applications with high impedance requirements

Procurement Notes

Verify the manufacturer marking matches onsemi specifications. Confirm the package type corresponds to the required footprint. Check date codes for freshness. Ensure the part number suffix aligns with the desired tape and reel or tube configuration. Validate RoHS compliance status if required for the specific application environment.

Selection Notes

Select this component when high input impedance and low bias current are critical. Consider the 16 V/µs slew rate for bandwidth requirements. Evaluate the supply voltage range compatibility with the system power rails. Compare noise specifications against other JFET op-amps if ultra-low noise is necessary.

Part Context

This part belongs to the LF351 series of single operational amplifiers. It is functionally compatible with other industry-standard JFET input op-amps but may differ in pinout or electrical characteristics. Verify cross-references carefully before substitution. The MX suffix typically indicates a specific packaging variant.

Replacement Considerations

Check datasheets for equivalent parts like TL071 or NE5532. Verify pin compatibility and electrical parameter overlaps. Ensure replacement parts meet the same slew rate and input bias current requirements.