LF411ACH/NOPB

Overview

The LF411ACH/NOPB is a low offset, low drift JFET input operational amplifier manufactured by Texas Instruments. It features a single channel with a gain-bandwidth product of 4 MHz and a slew rate of 15 V/µs. The device operates on dual supply voltages ranging from ±5 V to ±18 V (total 10 V to 36 V). Key electrical specifications include an input offset voltage of 300 µV, input bias current of 50 pA, and supply current of 1.8 mA. It is housed in an 8-pin TO-99 metal can package.

Feature Summary

• J-FET input stage providing very low input bias and offset currents
• Low offset voltage and low drift characteristics for precision applications
• High slew rate of 15 V/µs for fast signal response

Applications

• Precision integrators
• Sample-and-hold circuits
• High impedance sensor interfaces

Procurement Notes

Verify the specific suffix NOPB indicates lead-free compliance and RoHS adherence as per Texas Instruments standards. Confirm the TO-99-8 metal can package availability, as this form factor may have limited stock compared to plastic packages. Check for obsolescence status, as some sources indicate potential discontinuation or replacement by newer series like LF356. Ensure the supplier provides official datasheets matching the Rev D specification.

Selection Notes

Select the LF411ACH/NOPB when high input impedance and low bias current are critical requirements. It is suitable for applications requiring low offset voltage stability over temperature. Compare against the standard LF411CP if plastic packaging is preferred, noting potential differences in mechanical robustness. Consider the LF356H/NOPB as a modern alternative if higher bandwidth or different pinout compatibility is needed.

Part Context

This component belongs to the LF411 family of JFET-input operational amplifiers known for their precision and low noise. The ACH variant specifically denotes the TO-99-8 metal can package, offering superior environmental protection compared to plastic DIP versions. It is part of Texas Instruments' legacy lineup designed for analog signal processing tasks requiring high accuracy.

Replacement Considerations

Public confirmed substitutes include the LF356H/NOPB. Verify pinout compatibility and electrical parameter overlaps before substitution.