LF351D

Overview

The LF351D is a single wideband JFET input operational amplifier manufactured by STMicroelectronics. It features a gain-bandwidth product of 4 MHz and a typical slew rate of 16 V/µs. The device operates within a supply voltage range of 6 V to 32 V, with a maximum dual supply of 16 V. Key electrical parameters include an input bias current of 20 pA, an input offset voltage of 3 mV, and an output current capability of 40 mA per channel. It exhibits a common-mode rejection ratio of 70 dB and an input voltage noise density of 15 nV/sqrt Hz. The component is housed in an 8-SOIC surface-mount package and functions within a temperature range of 0°C to 70°C.

Feature Summary

• High-speed JFET input stage providing high input impedance and low input bias currents.
• Internally frequency compensated for stability without external components.
• Wide common-mode and differential voltage ranges extending up to the positive supply rail.
• Output short-circuit protection and latch-up free operation.

Applications

• High-speed signal processing circuits
• Precision integrators and differentiators
• Active filters requiring wide bandwidth

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Ensure the ordering code matches the required industrial temperature range and RoHS compliance status. Cross-reference manufacturer part numbers with distributor codes to avoid substitution errors during procurement.

Selection Notes

Select this component for applications requiring high slew rates and low input bias currents. Compare performance metrics such as gain-bandwidth product and noise density against alternative op-amps. Confirm that the 8-SOIC package dimensions fit the target PCB layout constraints.

Part Context

This device belongs to the LF351 series of high-performance operational amplifiers. It utilizes monolithic integration of matched JFET and bipolar transistors. The series is designed for general-purpose analog signal conditioning tasks requiring speed and precision.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Verify pin compatibility and electrical parameter equivalence before replacing the component in existing designs.

FAQ

What is the maximum supply voltage for the LF351D?

The maximum supply voltage is 32 V, with a maximum dual supply voltage of 16 V.

Does the LF351D have internal frequency compensation?

Yes, the device is internally frequency compensated to ensure stability in standard configurations.