LF156H

Overview

The LF156H is a single-channel JFET input operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 5 MHz and a slew rate of 12 V/us. Key electrical parameters include an input offset voltage of 2 mV, input bias current of 100 pA, and input noise current density of 10 fA. The device operates on supply voltages ranging from 10 V to 44 V, with a maximum dual supply of 22 V. It delivers 25 mA output current per channel and maintains a common-mode rejection ratio of 100 dB. The component is housed in a TO-99-8 metal can package for through-hole mounting.

Feature Summary

• JFET input architecture providing ultra-low input bias current and noise current density
• High-speed performance characterized by 5 MHz gain-bandwidth product and 12 V/us slew rate
• Robust power supply operation supporting wide voltage ranges up to 44 V
• Metal can packaging designed for high reliability and thermal stability

Applications

• Military-grade signal conditioning circuits requiring high reliability
• Precision instrumentation amplifiers utilizing low input bias characteristics
• High-speed data acquisition systems demanding fast transient response
• Low-noise preamplifier stages for sensitive sensor interfaces

Procurement Notes

Verify the specific suffix designation to confirm military-grade qualification status, as standard commercial variants may differ in temperature range and testing protocols. Ensure the TO-99-8 package compatibility with your PCB footprint and verify RoHS compliance requirements against the specific manufacturing lot documentation provided by the supplier.

Selection Notes

Select this component when application requirements demand extremely low input bias currents and noise levels unattainable with bipolar inputs. The wide supply voltage range makes it suitable for harsh environments or systems with varying power rails. Consider the through-hole metal can package constraints regarding board space and thermal management during the design phase.

Part Context

The LF156H belongs to the LF156 series of JFET input operational amplifiers produced by Texas Instruments. This series is engineered for applications requiring high precision and speed. The H suffix typically denotes a specific grade or variant within the family, often associated with enhanced reliability specifications compared to standard commercial parts.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.