LM7321QMFX/NOPB

Instrumentation, Op Amps, Buffer Amps Overview

The LM7321QMFX/NOPB is a single-channel, automotive-grade operational amplifier manufactured by Texas Instruments. It features rail-to-rail input and output capabilities within a SOT-23-5 surface-mount package. Key electrical specifications include a gain-bandwidth product of 20 MHz, a slew rate of 18 V/µs, and a maximum supply voltage of 32 V. The device operates with a quiescent current of 1.1 mA per channel and supports an extended industrial temperature range from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle electronics.
• Rail-to-rail input and output functionality maximizes dynamic signal range in low-voltage systems.
• High-speed performance characterized by a 20 MHz gain-bandwidth product and 18 V/µs slew rate.

Instrumentation, Op Amps, Buffer Amps Applications

• Automotive sensor signal conditioning circuits
• Active filtering in infotainment and body control modules
• Data acquisition systems requiring high common-mode voltage tolerance

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'Q' confirms AEC-Q100 automotive qualification status before integration into safety-critical designs. Confirm the 'MFX' suffix corresponds to the SOT-23-5 tape-and-reel packaging format required for automated assembly processes. Ensure the operating environment remains within the specified -40°C to +125°C thermal limits to maintain guaranteed electrical parameters.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing for automotive environments requiring both high speed and wide supply voltage tolerance. The rail-to-rail I/O makes it suitable for single-supply applications where maximizing headroom is critical. Compare against non-automotive grades if cost sensitivity outweighs the need for AEC-Q100 certification in non-critical subsystems.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LM7321 family of general-purpose operational amplifiers. The 'Q' designation indicates automotive grade qualification, while 'NOPB' signifies lead-free construction without halogenated flame retardants. It serves as a robust alternative to standard commercial op-amps in harsh electromagnetic and thermal conditions typical of modern vehicle architectures.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LM7321MMX/NOPB: Commercial grade version lacking automotive qualification; verify environmental requirements.

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LM7321QMFX/NOPB support dual supply operation?

Yes, the device supports dual supply voltages ranging from ±1.25 V to ±16 V, in addition to single supply configurations up to 32 V.

What is the input bias current specification?

The input bias current is typically 1.1 µA, which is higher than precision FET-input amplifiers but suitable for general-purpose applications.