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Maxim > Products > [Amplifiers and Comparators] 
MAX9718, MAX9719
Low-Cost, Mono/Stereo, 1.4W Differential Audio Power Amplifiers

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


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 604kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
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.

An evaluation kit is available:  MAX9719AEVKIT   MAX9718AEVKIT  

Key Features   Applications/Uses
  • 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

 
  		• Mobile Phones
  		• PDAs
  		• Portable Devices

    Diagram
    MAX9718, MAX9719: Block Diagram
    Block Diagram

    Application Notes
  		• Application Note 3498: Simple Logic-Level Translation Interfaces 1.8V Microcontrollers and 3V Peripherals - MAX9718
  		• Application Note 3924: Thermal Considerations for a UCSP Package - MAX9718, MAX9719

    Evaluation Kits
  		• MAX9719AEVKIT
  		• MAX9718AEVKIT

    Design Guides
  		• Amplifiers and Sensors (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-42 of 42

    MAX9718 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9718CETB+  
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718AETB+  
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718BETB+  
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718DETB+  
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718AETB-T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9718BETB-T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9718CETB-T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9718DETB-T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9718AETB+T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718BETB+T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718CETB+T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718DETB+T    
    		Active TDFN-EP;10 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0003 (PDF)
    Use pkgcode/variation: T1033+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718AEBL+TG45    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718BEBL+TG45    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718CEBL+TG45    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718DEBL+TG45    
    		Active UCSP;9 pin;2 mm²
    Outline Drawing: 21-0093 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B9+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718AEUB+  
    		Active µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9718AEUB+T    
    		Active µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9719AETE    
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719AETE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719BETE    
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719BETE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719CETE    
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719CETE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719DETE    
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719DETE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719AETE+  
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719AETE+T    
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719BETE+  
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719BETE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719CETE+  
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719CETE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719DETE+  
    		Active TQFN;16 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0070 (PDF)
    Use pkgcode/variation: T1644+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719DETE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX9719AEBE-T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16-6*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719BEBE-T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16-6*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719CEBE-T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16-6*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719DEBE-T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16-6*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9719AEBE+T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16+6*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719BEBE+T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16+6*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719CEBE+T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16+6*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX9719DEBE+T    
    		Active UCSP;15 pin;4 mm²
    Outline Drawing: 21-0101 (PDF)
    Land Pattern: Not Available
    Use pkgcode/variation: B16+6*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX9718
  		• New Product Press Release 2003-10-29 

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    Document Ref.: 19-3050; Rev 6; 2009-03-25
    This page last modified: 2009-10-12


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