MAX985ESA-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, single-supply audio amplifier
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: MAX985ESA-T is a versatile audio amplifier designed for various applications requiring high-quality sound amplification.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: 1.4W (typical) into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise (THD+N): 0.06% (typical) at 1kHz, 1.2W output power
• Signal-to-Noise Ratio (SNR): 90dB (typical) at 1kHz, 1.2W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX985ESA-T has the following pin configuration:

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| | --| VDD | --| IN+ | --| IN- | --| SHDN | --| GND | --| OUT | --| BYPASS | |___________| ```

Functional Features

• Single-supply operation from 2.7V to 5.5V allows compatibility with a wide range of systems.
• Low shutdown current ensures minimal power consumption when not in use.
• Bypass pin allows direct connection to an external amplifier for added flexibility.
• Internal thermal and short-circuit protection ensures safe operation.

Advantages and Disadvantages

Advantages: - High-quality audio amplification with low distortion. - Wide supply voltage range for compatibility with various systems. - Low power consumption in shutdown mode. - Built-in protection features for enhanced reliability.

Disadvantages: - Limited output power compared to higher wattage amplifiers. - May require additional external components for specific applications.

Working Principles

The MAX985ESA-T is a class AB audio amplifier that operates on a single supply voltage. It utilizes internal circuitry to amplify the input audio signal while maintaining low distortion and high fidelity. The amplifier can be enabled or disabled using the SHDN pin, allowing for power-saving operation when not in use. The BYPASS pin provides the option to bypass the internal amplifier and directly connect an external amplifier if desired.

Application Field Plans

The MAX985ESA-T is suitable for a wide range of audio amplification applications, including but not limited to:

1. Portable audio devices such as MP3 players, smartphones, and tablets.
2. Home entertainment systems, including speakers and soundbars.
3. Automotive audio systems for cars, motorcycles, and recreational vehicles.
4. Public address systems and intercoms.
5. Industrial equipment requiring audio amplification.

Alternative Models

For users seeking alternative options, the following models provide similar functionality to the MAX985ESA-T:

1. MAX98306ESA+: 2.7V to 5.5V, 3.2W audio amplifier in an 8-pin SOIC package.
2. TPA301DGNR: 2.7V to 5.5V, 1.25W audio amplifier in an 8-pin MSOP package.
3. LM4860MTE/NOPB: 2.7V to 5.5V, 1.1W audio amplifier in an 8-pin SOIC package.

These alternative models offer comparable features and can be considered based on specific application requirements.

In conclusion, the MAX985ESA-T is a high-performance audio amplifier suitable for various applications. Its low-power operation, wide supply voltage range, and built-in protection features make it a versatile choice for audio amplification needs.