LF356H

Overview

The LF356H is a military-grade, 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. The device operates within a supply voltage range of 10 V to 44 V, with a maximum dual supply of +/- 22 V. Key electrical parameters include an input offset voltage of 2 mV, input bias current of 200 pA, and input noise current density of 10 fA. It provides a common-mode rejection ratio of 100 dB and power supply rejection ratio of 80 dB. The component is housed in a TO-99-8 metal can package for through-hole mounting.

Feature Summary

• Military-grade construction designed for high-reliability applications
• Monolithic JFET input technology providing low input bias current
• High slew rate and wide bandwidth for fast signal processing
• Metal can packaging suitable for harsh environments

Applications

• Military instrumentation systems
• High-speed signal conditioning circuits
• Precision analog data acquisition
• Low-noise preamplifier stages

Procurement Notes

Verify the specific suffix designation against the manufacturer's datasheet to confirm military qualification status and temperature range specifications. Ensure the TO-99-8 package compatibility matches the target PCB footprint or socket requirements. Cross-reference the part number with official Texas Instruments documentation to validate RoHS compliance and lead-free manufacturing status prior to procurement.

Selection Notes

Select this component when military reliability standards are required alongside JFET input characteristics. It is suitable for applications demanding low input bias current and high speed. Consider the TO-99-8 package constraints compared to plastic alternatives. Evaluate the 44 V maximum supply voltage capability against system power rails. Verify that the 5 MHz bandwidth meets the signal frequency requirements.

Part Context

The LF356H belongs to the LF356 series of JFET-input operational amplifiers from Texas Instruments. This series integrates matched high-voltage JFETs with standard bipolar transistors on a single chip. The H suffix typically denotes a military-grade variant with stricter performance tolerances and environmental testing compared to commercial versions like the LF356N or LF356M.

Replacement Considerations

Public confirmed substitute part numbers: LF356H/NOPB.