MAX9718AEBL+T

Audio Amplifiers Overview

The MAX9718AEBL+T is a mono audio power amplifier from the Maxim Integrated MAX9718/MAX9719 family. It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers 1.4W of continuous average power per channel into a 4Ω load with less than 1% THD+N at a +5V supply. The device features differential inputs for improved noise rejection, adjustable gain via external resistors, and a low-power shutdown mode that reduces quiescent current to under 100nA. It incorporates comprehensive click-and-pop suppression circuitry and thermal-overload protection.

Audio Amplifiers Feature Summary

• Bridge-tied load (BTL) architecture minimizes external component count while providing high-quality audio amplification
• Differential input structure improves noise rejection and provides common-mode rejection
• Adjustable gain option allows flexibility in system design through external feedback resistors
• Low-power shutdown mode significantly reduces quiescent current consumption

Audio Amplifiers Applications

• Mobile phones
• Personal digital assistants (PDAs)
• Portable audio devices

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix '+TG45' against official Analog Devices documentation to confirm package type and die coating specifications. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Confirm pinout alignment with the 3x3 UCSP package before integration. Cross-reference the datasheet revision history for any functional updates or manufacturing changes.

Audio Amplifiers Selection Notes

Select this component for portable applications requiring a single-channel BTL amplifier with adjustable gain. Consider the 3x3 UCSP package for space-constrained designs. Evaluate the trade-off between PSRR improvement and turn-on time when selecting the BIAS capacitor value. Ensure the application does not exceed the maximum capacitive drive limits specified in the electrical characteristics.

Audio Amplifiers Part Context

This part belongs to the MAX9718/MAX9719 series of low-cost, mono/stereo audio power amplifiers designed for portable devices. The MAX9718 variant provides single-channel amplification, whereas the MAX9719 offers dual-channel stereo output. Both share similar architectural features including BTL operation and click-and-pop suppression.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. Verify electrical parameter equivalence and thermal performance before substituting.