NJM318M

Instrumentation, Op Amps, Buffer Amps Overview

The NJM318M is a precision high-speed operational amplifier manufactured by Nisshinbo Micro Devices Inc. It features a single channel with a unity gain bandwidth of 15 MHz and a typical slew rate of 70 V/µs. The device operates on supply voltages ranging from ±5V to ±20V, consuming 10 mA of operating current. Key electrical parameters include an input offset voltage of 10 mV, input bias current of 500 nA, and a common mode rejection ratio of 70 dB. It utilizes bipolar technology and is housed in a DMP-8 surface-mount package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High-speed performance with wide bandwidth and fast slew rate for demanding applications
• Internal unity gain frequency compensation simplifies application design without external components
• External frequency compensation options available for optimizing stability or boosting performance
• Bipolar technology construction ensures robust DC performance alongside AC speed

Instrumentation, Op Amps, Buffer Amps Applications

• A/D converters
• Oscillators
• Active filters
• Sample and hold circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

This component is designated as a discontinued product scheduled for end-of-life. Production will cease in the near term, and availability is restricted to existing customers currently utilizing the part. It is not approved for new project designs. Engineers must verify current stock status and lead times through authorized distributors. Immediate planning for alternative solutions is required to ensure long-term supply chain continuity.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this amplifier when high-speed signal processing is critical but general-purpose devices lack sufficient bandwidth. The internal compensation reduces design complexity, while optional external adjustments allow for tailored stability. Consider the DMP-8 package constraints and bipolar input characteristics. Verify that the 70 V/µs slew rate meets dynamic signal requirements and that the ±5V to ±20V supply range aligns with system power rails.

Instrumentation, Op Amps, Buffer Amps Part Context

The NJM318M belongs to the NJM318 series of high-speed operational amplifiers from Nisshinbo. This series offers significantly improved speed over standard general-purpose amplifiers like the NJM741 while maintaining comparable DC accuracy. The M suffix indicates the specific DMP-8 surface-mount package variant within the broader family that also includes DIP and SOP configurations.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

NJM318D

Instrumentation, Op Amps, Buffer Amps FAQ

Can external components be added to improve the NJM318M's performance?

Yes, unlike most internally compensated amplifiers, the NJM318M allows for external frequency compensation. Adding feedforward compensation can boost the slew rate to over 150V/µs and nearly double the bandwidth.

What is the maximum supply voltage for the NJM318M?

The absolute maximum rating for the supply voltage is ±20V. The recommended operating voltage range is typically between ±5V and ±20V.