MAX9718
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MAX9718

Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers

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Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers Ideal for Portable Audio Devices with Internal Speakers

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Info: : PRODUCTION tooltip
Part Details
Part Models 7
1ku List Price Starting From $0.47
Features
  • 2.7V to 5.5V Single-Supply Operation
  • Very High -93dB PSRR at 217Hz
  • 1.4W into 4Ω at 1% THD+N (per Channel)
  • Differential Input
  • Internal Fixed Gain to Reduce Component Count
  • Adjustable Gain Option (MAX9718A/H/MAX9719A)
  • 100nA Low-Power Shutdown Mode
  • No Audible Clicks or Pops at Power-Up/Down
  • Improved Performance Pin-Compatible Upgrade to LM4895 (MAX9718D/G)
  • 1.8V Logic Compatible
Additional Details
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The MAX9718/MAX9719 differential input audio power amplifiers are ideal for portable audio devices with internal speakers. The differential input structure improves noise rejection and provides common-mode rejection. A bridge-tied load (BTL) architecture minimizes external component count, while providing high-quality, power audio amplification. The MAX9718 is a single-channel amplifier while the MAX9719 is a dual-channel amplifier for stereo systems. Both devices deliver 1.4W continuous average power per channel to a 4Ω load with less than 1% THD+N while operating from a single +5V supply. The devices are available as adjustable gain amplifiers or with internally fixed gains of 0dB, 3dB, and 6dB to reduce component count.

A shutdown input disables the bias generator and amplifiers and reduces quiescent current consumption to less than 100nA. The MAX9718 shutdown input can be set as active high or active low. These devices feature Maxim's comprehensive click-and-pop suppression circuitry that reduces audible clicks and pops during startup and shutdown.

The MAX9718 is pin compatible with the LM4895, and is available in 9-bump UCSP™, 10-pin TDFN, and 10-pin µMAX® packages. The MAX9719 is available in 16-pin TQFN, 16-pin TSSOP, and 16-bump UCSP packages. Both devices operate over the -40°C to +85°C extended temperature range.

Applications

  • Mobile Phones
  • PDAs
  • Portable Devices
Part Models 7
1ku List Price Starting From $0.47

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Documentation

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MAX9718DEUB+
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MAX9718HETB+
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Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

MAX9718AETB+T

PRODUCTION

MAX9718HETB+

LAST TIME BUY

Sep 19, 2018

- 1753N

ASSEMBLY

MAX9718DEUB+

PRODUCTION

MAX9718DEUB+T

PRODUCTION

Filter by Model

reset

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Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

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ASSEMBLY

MAX9718AETB+T

PRODUCTION

MAX9718HETB+

LAST TIME BUY

Sep 19, 2018

- 1753N

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ASSEMBLY

MAX9718DEUB+

PRODUCTION

MAX9718DEUB+T

PRODUCTION

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