LF256H

Overview

The LF256H is a single-channel operational amplifier from Texas Instruments featuring FET input technology. It operates within a supply voltage range of 10 V to 44 V and delivers a gain-bandwidth product of 5 MHz with a slew rate of 12 V/us. Key electrical specifications include an input bias current of 100 pA, input offset voltage of 2 mV, and input noise current density of 10 fA. The device provides 25 mA output current per channel and maintains a common-mode rejection ratio of 100 dB. It is housed in a TO-99-8 package for through-hole mounting.

Feature Summary

• FET input architecture providing low input bias current
• High common-mode rejection ratio for signal integrity
• Wide dual power supply capability up to 44 V

Applications

• Precision analog signal conditioning circuits
• High-impedance sensor interface amplification
• Low-noise instrumentation front ends

Procurement Notes

Verify the specific manufacturer lot and RoHS compliance status directly with the supplier, as datasheet attributes may vary by production batch. Confirm the package type matches the TO-99-8 specification required for your through-hole assembly process. Ensure the operating temperature range aligns with your system's environmental requirements before finalizing procurement.

Selection Notes

Select this component when high input impedance and low bias current are critical for maintaining accuracy in high-impedance source applications. The wide supply voltage range allows flexibility in power design compared to standard rail-to-rail op-amps. Consider the TO-99-8 package constraints if space or thermal dissipation in a dense PCB layout is a primary concern.

Part Context

This part belongs to the LF256 series of JFET-input operational amplifiers designed for precision applications. It shares architectural similarities with other members like the LF356 but offers distinct electrical characteristics tailored for specific performance needs. The series is characterized by its robust FET input stage and high-speed capabilities suitable for demanding analog processing tasks.

Replacement Considerations

The LF356H is a documented alternative within the same family offering similar performance metrics.