LF412MH

Overview

The LF412MH is a military-grade dual operational amplifier from the LF412 series, manufactured by Texas Instruments. It utilizes BiFET technology to deliver high-speed performance with a gain-bandwidth product of 3 MHz and a slew rate of 13 V/us. The device features low input bias current of 200 pA and low input noise current density of 10 fA. It operates within a supply voltage range of 5 V to 36 V single or ±2.5 V to ±18 V dual, with a maximum supply voltage of 36 V. Key electrical parameters include an input offset voltage of 3 mV, CMRR of 100 dB, and PSRR of 70 dB. It is housed in a TO-99-8 metal can package and supports through-hole mounting across an extended temperature range of -55°C to +125°C.

Feature Summary

• Military-grade qualification for reliable operation in harsh environments
• BiFET input stage providing low input bias current and noise
• High slew rate and bandwidth suitable for fast signal processing

Applications

• Precision instrumentation requiring high stability
• High-speed data acquisition systems
• Medical equipment signal conditioning

Procurement Notes

Verify the specific suffix 'MH' corresponds to the military-grade specification and TO-99-8 package configuration as listed in official Texas Instruments documentation. Confirm RoHS status and lead times directly with authorized distributors, as military parts may have distinct availability constraints compared to commercial variants. Ensure the ordering part number matches the exact pinout and environmental ratings required for the design.

Selection Notes

Select the LF412MH when military reliability and wide temperature operation are mandatory. Compare against the LF412CP for commercial applications where lower cost is prioritized over extreme environmental tolerance. Consider the LF412CDR for surface-mount designs requiring similar electrical characteristics but in a plastic SOIC package. Verify that the TO-99-8 package fits the mechanical constraints of the target assembly.

Part Context

The LF412MH belongs to the LF412 family of dual JFET-input operational amplifiers known for their high speed and low power consumption. This specific variant is distinguished by its military-grade screening and robust metal can packaging, designed for aerospace and defense applications. It shares core electrical specifications with other LF412 derivatives but offers enhanced durability and temperature range compliance.

Replacement Considerations

Official substitutes include the LF412MH/NOPB, which maintains identical functionality while adhering to specific manufacturing standards. For non-military applications, the LF412CP (PDIP) or LF412CDR (SOIC) offer compatible electrical performance in different packages.