MAX9718AEUB+ by Analog Devices

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

Status: Active
Series: MAX9718
RoHS: Unknown
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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.

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Prices starting from US$1.53

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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

Specifications

# Channels 1
Class AB
Spkr. Amp. VCC (V) (min) 2.7
Spkr. Amp. VCC (V) (max) 5.5
Spkr. Amp. ICC (mA) (typ) 5
POUT into 4Ω @ 1% THD+N (W) (min) 1.4
POUT into 4Ω @ 10% THD+N (W) (min) 1.7
POUT into 8Ω @ 1% THD+N (W) (min) 1.1
POUT into 8Ω @ 10% THD+N (W) (min) 1.3
Spkr. Amp. Half Pwr. THD+N (%) 0.025
SNR (dB) (A- Weighted) 107
PSRR (dB) (min) 93
Package/Pins TDFN/10UMAX/10
BudgetaryPrice (See Notes) 0.4

Last 6 months Inventory & Pricing History

MAX9718AEUB+ Amplifiers & Comparators by Analog Devices

AUDIO AMP CLASS AB 1.4W UMAX-10

Semiconductors - ICs
> Amplifiers & Comparators
> Audio Amplifiers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Amplifier Class AB
No. of Channels 1 Channel, 1Channels
Output Power 1.4W
Supply Voltage Range 2.7V to 5.5V
Amplifier Case Style µMAX
No. of Pins 10Pins
Load Impedance 4ohm
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

AUDIO AMP, CLASS AB, 1.4W, UMAX-10 | Farnell

Frequently Asked Questions

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Is the MAX9718AEUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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