SSM2211P

Overview

The SSM2211P is a high-performance Class AB audio power amplifier manufactured by Analog Devices Inc. It delivers 1 W RMS into an 8 Ω bridge-tied load or 1.5 W RMS into a 4 Ω load. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, with functional operation down to 1.75 V for unregulated battery applications. Key electrical specifications include a 4 MHz bandwidth and total harmonic distortion plus noise below 0.2% at 1 W output. It features a low differential DC output voltage and excellent power supply rejection. The component is housed in an 8-lead narrow-body SOIC package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Delivers 1.5 W output power with low distortion characteristics
• Supports single-supply operation with wide bandwidth stability
• Includes shutdown mode to minimize quiescent current drain

Applications

• Portable computers
• Hands-free telephones and transceivers
• Talking toys and intercom systems

Procurement Notes

Verify the specific suffix 'P' corresponds to the 8-lead SOIC package variant when sourcing. Confirm that the required output power matches the 1.5 W rating into a 4 Ω load. Ensure the application environment stays within the specified -40°C to +85°C temperature range. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component for low-voltage audio systems requiring high efficiency and minimal external components. The differential input architecture simplifies circuit design by eliminating large DC blocking capacitors. Consider the thermal performance of the SOIC package for high-power continuous operation scenarios.

Part Context

This part belongs to the SSM2211 family of low-distortion audio amplifiers. The 'P' designation specifically identifies the plastic small-outline integrated circuit (SOIC) package version. Other variants in the series may utilize lead frame chip scale packages (LFCSP) for different thermal or footprint requirements.

Replacement Considerations

Direct substitutes include other SSM2211 package variants such as the SSM2211SZ. Verify pinout compatibility and thermal dissipation capabilities before swapping between SOIC and LFCSP versions.