LM4562NA/NOPB

Instrumentation, Op Amps, Buffer Amps Overview

The LM4562NA/NOPB is a dual high-performance, high-fidelity audio operational amplifier manufactured by Texas Instruments. It operates within a power supply voltage range of ±2.5V to ±17V and features an input noise density of 2.7nV/√Hz. The device delivers a total harmonic distortion plus noise (THD+N) of 0.00003% at a gain of 1 with a 2kΩ load. Key electrical specifications include a slew rate of ±20V/μs, a gain bandwidth product of 55MHz, and an open-loop gain of 140dB. It provides an output current capability of ±26mA and maintains unity gain stability.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Optimized for superior audio signal fidelity with ultra-low distortion and low noise characteristics
• Capable of easily driving complex loads including 600Ω resistive and up to 100pF capacitive loads
• Features output short circuit protection to ensure robust operation under fault conditions
• Provides excellent DC performance through common-mode rejection and power supply rejection ratios exceeding 120dB

Instrumentation, Op Amps, Buffer Amps Applications

• Ultra high-quality audio amplification
• High-fidelity preamplifiers
• High-performance professional audio systems
• High-fidelity active equalization and crossover networks
• High-performance line drivers and receivers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package type matches the design requirements, as the LM4562 family includes SOIC, PDIP, and TO-99 options. Confirm that the ordering suffix corresponds to the desired packaging format. Ensure the selected component meets the required operating temperature range and complies with relevant environmental standards such as RoHS before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits requiring exceptional audio clarity and dynamic range. It is suitable for applications demanding high output drive capabilities into low impedance loads. Consider the wide supply voltage range for flexibility in various power architectures. Verify that the thermal management strategy aligns with the device's power dissipation limits in the chosen enclosure.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LM4562 series of dual operational amplifiers designed specifically for high-fidelity audio applications. Originally developed by National Semiconductor, the product line is now supported by Texas Instruments following their acquisition. The series is engineered to minimize transient intermodulation distortion and improve frequency response in sensitive audio signal paths.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The LM4562MAX/NOPB serves as a direct replacement option, offering identical electrical performance but housed in an SOIC surface-mount package instead of the PDIP through-hole configuration.