LF351N

Overview

The LF351N is a single JFET input operational amplifier in an 8-DIP package. It features a wide gain bandwidth of 4 MHz and a high slew rate of 13 V/µs. The device has an internally trimmed offset voltage of 10 mV, low input bias current of 50 pA, and high input impedance of 10^12 Ω. Operating temperature range is 0 to +70 °C with supply voltages up to ±18 V.

Feature Summary

• JFET input stage providing high input impedance
• Internally compensated for stability
• Internally trimmed offset voltage
• Output short-circuit protection

Applications

• Signal processing circuits
• High-speed integrators
• Sample-and-hold applications

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or successor entities like onsemi. Confirm the package type matches the required 8-DIP form factor. Ensure the operating temperature range meets the specific application requirements of 0 to +70 °C. Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Selection Notes

Select this component when a single-channel JFET input op-amp is needed. It offers a balance of speed and low noise. Consider the 4 MHz bandwidth and 13 V/µs slew rate for signal conditioning tasks. Verify that the 8-DIP package fits the PCB layout constraints.

Part Context

Part of the LF35x family of JFET input operational amplifiers. Designed for general-purpose analog signal processing. Provides a cost-effective alternative to more specialized precision amplifiers while maintaining good AC performance characteristics.

Replacement Considerations

Check pin compatibility with other single JFET op-amps. Verify electrical parameters match the original design requirements. Review mechanical dimensions for footprint compatibility.