LMH6321MRX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LMH6321MRX/NOPB is a high-performance audio operational amplifier designed for use in professional audio applications. It provides excellent audio quality and low distortion, making it suitable for various audio processing tasks.

Characteristics: - High bandwidth: The LMH6321MRX/NOPB offers a wide bandwidth of up to 400 MHz, allowing for accurate reproduction of high-frequency audio signals. - Low distortion: With a total harmonic distortion plus noise (THD+N) rating of less than 0.00003%, the LMH6321MRX/NOPB ensures minimal audio signal degradation. - High slew rate: The amplifier has a high slew rate of 1800 V/µs, enabling it to handle fast voltage changes and maintain signal integrity. - Low noise: The LMH6321MRX/NOPB has a low input-referred noise voltage of 2.7 nV/√Hz, ensuring clean audio signal amplification. - Wide supply voltage range: It operates from a single power supply voltage ranging from 4.5V to 15V, providing flexibility in various audio system designs.

Package: The LMH6321MRX/NOPB comes in a small outline integrated circuit (SOIC) package, which is widely used in the electronics industry due to its compact size and ease of handling.

Essence: The LMH6321MRX/NOPB is an essential component in audio systems where high-quality audio amplification is required. Its high performance and low distortion characteristics make it ideal for professional audio equipment such as mixers, amplifiers, and audio interfaces.

Packaging/Quantity: The LMH6321MRX/NOPB is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 15V
• Input Offset Voltage: ±1 mV (max)
• Input Bias Current: ±2 nA (max)
• Gain Bandwidth Product: 400 MHz
• Slew Rate: 1800 V/µs
• Total Harmonic Distortion plus Noise (THD+N): <0.00003%
• Input-Referred Noise Voltage: 2.7 nV/√Hz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LMH6321MRX/NOPB has a total of 8 pins, which are assigned specific functions as follows:

1. OUT-
2. IN-
3. V-
4. V+
5. BYPASS
6. NC (No Connection)
7. IN+
8. OUT+

Functional Features

• High gain: The LMH6321MRX/NOPB offers a high voltage gain of up to 1000, allowing for significant amplification of audio signals.
• Unity-gain stable: It is designed to be stable at unity gain, ensuring reliable and consistent performance in various audio applications.
• Output short-circuit protection: The amplifier includes built-in protection circuitry that prevents damage in case of accidental short-circuits at the output.
• Low power consumption: The LMH6321MRX/NOPB operates with low quiescent current, making it energy-efficient and suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - High bandwidth and low distortion ensure accurate audio signal reproduction. - Wide supply voltage range allows for flexible system design. - Small package size enables space-saving integration into audio equipment. - Output short-circuit protection enhances reliability and durability.

Disadvantages: - Limited availability of alternative models with similar specifications. - Higher cost compared to standard audio amplifiers.

Working Principles

The LMH6321MRX/NOPB is based on a voltage feedback architecture, utilizing high-performance operational amplifier circuitry. It amplifies the input audio signal while maintaining low distortion and high bandwidth characteristics. The amplifier's internal circuitry ensures stability and reliable operation even at high gain settings.

Application Field Plans

The LMH6321MRX/NOPB finds applications in various professional audio equipment, including: - Audio mixers - Headphone amplifiers - Audio interfaces - Studio monitors - Public address systems

Its high performance and low distortion make it suitable for demanding audio applications where accurate signal reproduction is crucial.

Alternative Models

While the LMH6321MRX/NOPB offers unique features and specifications, alternative models with similar functionality include: - ADA4898-1 by Analog Devices - OPA1612 by Texas Instruments - LT1355 by Linear Technology

These alternatives can be considered based on specific application requirements and availability.

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