LF411CD

Overview

The LF411CD is a single-channel precision operational amplifier manufactured by Texas Instruments, not onsemi. It features JFET input technology with an 8 MHz gain-bandwidth product and a 25 V/µs slew rate. Key electrical parameters include a 500 µV input offset voltage, 60 pA input bias current, and 100 dB common-mode rejection ratio. The device operates within a ±15 V supply range, consuming 2.5 mA of quiescent current. It is housed in an SOIC-8 surface-mount package and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• JFET-input architecture providing low input bias current and noise
• High-speed performance with significant slew rate capability
• Precision characteristics including low input offset voltage

Applications

• High-impedance signal conditioning circuits
• Precision integrators and differentiators
• Active filters requiring low input current

Procurement Notes

Verify the manufacturer designation carefully, as the LF411 series is produced by Texas Instruments. Confirm the specific suffix 'CD' indicates the commercial temperature grade and SOIC-8 tape-and-reel packaging. Check for obsolescence status, as some variants are scheduled for discontinuation. Ensure compatibility with existing PCB footprints for SOIC-8 packages before procurement.

Selection Notes

Select this component when low input bias current is critical for maintaining accuracy in high-impedance applications. The JFET input stage offers superior noise performance compared to bipolar counterparts. Consider the commercial temperature range limits if operating in extreme environments. Evaluate the trade-off between the high slew rate and the specific bandwidth requirements of the target circuit design.

Part Context

The LF411 belongs to a family of high-speed JFET-input operational amplifiers known for combining fast transient response with precision DC characteristics. This specific part represents the single-channel variant designed for general-purpose analog signal processing where low input current and high speed are required simultaneously.

Replacement Considerations

Public confirmed substitutes include the TL061CD. Verify pinout compatibility and electrical parameter equivalence before substitution.