LF442ACN/NOPB

Overview

The LF442ACN/NOPB is a dual low-power JFET input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 1 MHz and a slew rate of 1 V/us. The device operates with a supply voltage range from 6 V to 36 V, drawing a typical operating current of 600 uA per channel. Key electrical specifications include an input offset voltage of 10 mV, input bias current of 100 pA, and a common-mode rejection ratio of 95 dB. It is housed in an 8-pin DIP package.

Feature Summary

• JFET input stage providing high input impedance
• Low power consumption suitable for battery applications
• Wide single or split supply voltage operation

Applications

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

Procurement Notes

Verify the specific suffix 'CN' indicates the plastic DIP package variant when sourcing. Confirm RoHS compliance status via the manufacturer's official documentation as manufacturing processes may evolve. Ensure the ordering part number matches the exact temperature grade and packaging requirements for your design.

Selection Notes

Select this component for designs requiring high input impedance with moderate bandwidth. Compare against the LF412 series if lower drift is required. Verify that the 10 mV input offset voltage meets your application's precision needs. Ensure the 8-pin DIP package fits your PCB layout constraints.

Part Context

This part belongs to the LF44x family of low-power JFET operational amplifiers. It serves as a dual-channel version within this lineup, offering similar performance characteristics to other members like the quad-channel LF444. The family is designed for general-purpose analog signal processing where low power and high input impedance are prioritized.

Replacement Considerations

Direct pin-compatible replacements include the LF442AMH and TL082. Verify that substitute parts meet the same JFET input specifications and package dimensions.