High Dynamic-Range Headphone Driver Reference Design for Voltage-Output, Differential Audio DACs

(ACTIVE) TIDA-00715

Description & Features

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Description

A low THD+N amplifier signal chain for driving headphones is presented. The design walks through various factors to consider in order to optimize performance based on customer needs.

Features
  • Ultra-low distortion, THD+N < 0.0003%
  • Low power consumption, 18.25mW/channel
  • Ability to drive 50mW of output power into 32Ω headphone load without sacrificing performance
  • Compact design ideal for portable application
  • Low-power mode to save power in portable applications
  • The circuit performance is thoroughly whetted and includes the entire amplifier singal-chain and a design guide that walks the user throguh various options to consider when designing a headphone amplifier

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA2836  Dual, Very Low Power, Rail to Rail out, Negative Rail in, VFB Op Amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
THS4521  Very low power rail-to-rail output fully differential amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA2836 Download Download
Download Download
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THS4521 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 2914 17 Sep 2015 8
Design files (5)
Title Abstract Type Size (KB) Date Views
ZIP 1748 07 Oct 2015 7
PDF 354 07 Oct 2015 2
PDF 167 07 Oct 2015 2
PDF 92 07 Oct 2015 3
PDF 101 07 Oct 2015 12
Related Tools & Software

Software (1)



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