SSM2211S-REEL

Overview

The SSM2211S-REEL is a low distortion, 1.5 W audio power amplifier manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and delivers 1 W rms into an 8 Ω load or 1.5 W rms into a 4 Ω load. The device features a 4 MHz bandwidth with total harmonic distortion plus noise below 0.2% at 1 W output. It includes a shutdown mode that reduces quiescent current to approximately 1 µA. The component is housed in an 8-lead SOIC narrow body surface-mount package.

Feature Summary

• Bridged-Tied Load (BTL) output configuration eliminates the need for large DC blocking capacitors.
• Shutdown control pin significantly extends battery life by reducing quiescent current drain.
• Unity-gain stable design requires no external compensation capacitors.
• Low differential DC output voltage prevents speaker winding losses.

Applications

• Portable computers
• Personal wireless communicators
• Hands-free telephones
• Speaker phones
• Intercoms

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and reel specifications. Ensure compatibility with the intended PCB footprint and thermal management requirements. Confirm RoHS compliance status and lead-free soldering parameters prior to integration into production assemblies.

Selection Notes

Select this component for applications requiring high efficiency and low distortion in a single-supply environment. The BTL architecture allows for higher power delivery compared to single-ended configurations without additional coupling components. Consider the thermal resistance characteristics of the SOIC package when designing for maximum ambient temperatures.

Part Context

This part belongs to the SSM2211 family of audio amplifiers designed for portable electronics. The 'S' suffix indicates the 8-lead SOIC narrow body package variant. The '-REEL' designation specifies the tape and reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Consult the manufacturer's ordering guide for verified alternative packages within the same product line, such as the LFCSP variant, which offers improved thermal performance.