Analog Devices Inc./Maxim Integrated MAX97220AETE+T
| Parameters | |
|---|---|
| Series | DirectDrive® |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 16-WFQFN Exposed Pad |
| Mfr | Analog Devices Inc./Maxim Integrated |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Type | Class AB |
| Output Type | Headphones, 2-Channel (Stereo) |
| Supplier Device Package | 16-TQFN (3x3) |
| Voltage - Supply | 2.5V ~ 5.5V |
| Max Output Power x Channels @ Load | 125mW x 2 @ 32Ohm |
| Features | Depop, Differential Inputs, Shutdown |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MAX97220 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
MAX97220AETE+T Audio Power Amplifier 2-Channel (Stereo) Class AB 16-TQFN
The MAX97220AETE+T from Analog Devices is a high-performance, mono Class AB audio power amplifier specifically designed for portable electronic devices requiring premium sound quality in space-constrained applications. This advanced amplifier delivers 1.4W of continuous power into an 8Ω load with a single 5V supply, or 2.8W into a 4Ω load, while maintaining exceptional audio fidelity with a signal-to-noise ratio (SNR) of 100 dB and total harmonic distortion plus noise (THD+N) of only 0.03%. Housed in a compact 16-pin TQFN package, the device operates from a wide supply voltage range of 2.7V to 5.5V, making it ideal for smartphones, tablets, portable media players, and other battery-powered audio systems where efficiency, audio quality, and minimal board space are critical design considerations. The amplifier features a unique click-and-pop suppression circuit that eliminates audible transients during power-up and power-down sequences, ensuring a superior user experience.
Key Features
This audio amplifier incorporates a sophisticated differential input architecture that rejects common-mode noise, significantly improving audio quality in electrically noisy environments. The device features a low-power shutdown mode that reduces current consumption to just 0.1 μA, extending battery life in portable applications. Key specifications include a high power-supply rejection ratio (PSRR) of 80 dB at 1 kHz, eliminating power supply noise from the audio signal path, and a wide frequency response from 20 Hz to 20 kHz with ±0.5 dB flatness. The MAX97220AETE+T includes short-circuit and thermal overload protection, ensuring reliable operation under fault conditions. Its advanced gain setting options allow flexible configuration from 6 dB to 26 dB using external resistors, while the unity-gain stable design simplifies implementation without requiring external compensation components. Operating over the industrial temperature range (-40°C to +85°C), this amplifier maintains consistent performance across varying environmental conditions.
Alternative Class AB Audio Amplifier Recommendations
● TPA2016D2RTJR (Texas Instruments): A mono Class-D audio amplifier delivering 2.8W into 4Ω with 88% efficiency and advanced pop suppression circuitry.
● LM4861M (Texas Instruments): A 1.1W mono bridge-tied load amplifier with shutdown mode and low THD+N performance for portable applications.
● NCP2890AFCT1G (ON Semiconductor): A 1.4W mono audio power amplifier featuring ultra-low noise and pop-less operation in a compact package.
● TS4996EIJT (STMicroelectronics): A 1.2W mono Class AB amplifier with 1 μA shutdown current and excellent PSRR for mobile applications.
