LF411ACN/NOPB

Overview

The LF411ACN/NOPB is a precision operational amplifier from Texas Instruments featuring JFET input technology. It provides high-speed performance with a gain-bandwidth product of 8 MHz and a slew rate of 25 V/us. The device offers low offset voltage of 500 uV and low input bias current of 60 pA. It operates on dual power supplies ranging from -15 V to +15 V, consuming 2.5 mA of supply current per channel. The component is housed in an 8-pin PDIP package.

Feature Summary

• JFET input stage ensures extremely low input bias current for minimal loading effects
• Low offset voltage and drift characteristics maintain signal accuracy over temperature
• High slew rate supports fast transient response in demanding applications

Applications

• Precision analog signal conditioning circuits
• Active filter designs requiring low noise and high impedance
• Instrumentation amplifiers for sensor interfaces

Procurement Notes

Verify the specific suffix 'A' indicates military or extended grade specifications compared to standard commercial variants. Confirm the 'CN/NOPB' designation aligns with lead-free packaging requirements and RoHS compliance standards for your assembly process. Ensure the supplier provides traceability documentation for the A-grade classification.

Selection Notes

Select this component when high input impedance and low bias current are critical for maintaining signal integrity in high-impedance source applications. The JFET input architecture makes it suitable for integrating capacitive sensors. Compare against bipolar input op-amps if lower voltage noise is required at the expense of higher bias current.

Part Context

This part belongs to the LF411 series of precision JFET-input operational amplifiers manufactured by Texas Instruments. The series is designed to offer improved performance over older bipolar counterparts while maintaining pin compatibility. The NOPB suffix confirms the absence of lead and halogen content, adhering to environmental directives.

Replacement Considerations

Public confirmed substitute part numbers: LF411ACN, LF411AN.