LF356H/NOPB

Overview

The LF356H/NOPB is a military-grade single operational amplifier from Texas Instruments, utilizing BI-FET II technology to integrate matched high-voltage JFETs with standard bipolar transistors. It features a gain-bandwidth product of 5 MHz and a slew rate of 12 V/us. The input offset voltage is 2 mV, with an input bias current of 200 pA. Operating on dual supplies from ±5 V to ±22 V (total 10 V to 44 V), it draws 5 mA of supply current per channel. The device offers a common-mode rejection ratio of 100 dB and power supply rejection of 80 dB. It operates within a temperature range of -55°C to +125°C and is housed in a TO-99-8 metal can package.

Feature Summary

• Military-grade reliability with extended temperature range for harsh environments
• BI-FET II technology combining JFET inputs with bipolar output stages
• High common-mode rejection ratio and low input noise characteristics
• Capable of driving large capacitive loads without stability issues

Applications

• Precision signal processing circuits requiring high reliability
• Instrumentation amplifiers for aerospace or defense systems
• High-speed data acquisition front-ends
• Low-noise preamplifier stages in measurement equipment

Procurement Notes

Verify the specific suffix H/NOPB against the manufacturer's latest datasheet to confirm military qualification status and RoHS compliance. Ensure the TO-99-8 package compatibility matches your PCB footprint or adapter requirements. Cross-reference the lot code and date code if long-term availability is critical for production cycles.

Selection Notes

Select this component when military-grade performance and wide temperature operation are required alongside JFET input characteristics. Compare the 2 mV offset voltage and 100 dB CMRR against commercial variants like the LF356N if environmental constraints allow. Consider the TO-99-8 package size constraints relative to available board space.

Part Context

This part belongs to the LF356 family of JFET input operational amplifiers. The 'H' designation typically indicates military grade specifications, while 'NOPB' signifies lead-free and no halogen construction. It serves as a high-performance alternative to hybrid FET op-amps, offering robust handling compared to MOSFET inputs due to its JFET architecture.

Replacement Considerations

The LF156H/NOPB is a verified substitute within the same family, sharing similar electrical parameters but potentially differing in specific military screening levels. Verify pinout compatibility between TO-99-8 packages before substitution.