Audio Click-Pop Suppressor

Industry's First Integrated Audio Click-and-Pop Suppressor

Please check latest availability status for a specific part variant.


The MAX9890 provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless startup/power-up or shutdown/power-down. The device controls the ramping of the DC bias voltage on the output-coupling capacitors and the application of the audio signal to ensure that no audible transients are present at the headphones. The MAX9890A features a 200ms startup time for use with up to 100µF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100µF coupling capacitors.

The MAX9890 consumes 14µA of supply current and 0.001µA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load. ESD (Human Body Model) protection circuitry on the outputs protect the MAX9890 and devices further up the signal chain from ESD strikes up to ±8kV.

The MAX9890 is available in a miniature (1.5mm x 1.5mm x 0.6mm) 9-bump chip-scale package (UCSP™), as well as an 8-pin TDFN package (3mm x 3mm x 0.8mm), and is specified for operation over the -40°C to +85°C extended temperature range.
MAX9890: Typical Application Circuit MAX9890: Typical Application Circuit Enlarge+

Key Features

  • 36dB Click-Pop Suppression
  • 2.7V to 5.5V Single-Supply Operation
  • Clickless/Popless Startup/Power-Up and Shutdown/Power-Down
  • 0.001µA Low-Power Shutdown Mode
  • THD+N < 0.003% Into 32Ω
  • ±8kV ESD Protected Outputs (Human Body Model)
  • Requires Only One 0.1µF Capacitor to Complete the Circuit
  • Low 14µA Supply Current
  • Tiny Packaging
    • 9-Bump UCSP (1.5mm x 1.5mm x 0.6mm)
    • 8-Pin TDFN (3mm x 3mm x 0.8mm)


  • Cell Phones
  • High-End Notebook Audio
  • PDAs
  • Portable DVD Players
  • Portable MP3 Players
Part NumberVSUPPLY
minmaxtypminSee Notes
UCSP (B)/9
$0.67 @1k
See All Click-Pop Suppressors (2)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX9890EVKIT: Evaluation Kit for the MAX9890

Technical Documents

Tutorial 4723 Eliminating Audible Transients in Audio Systems
Tutorial 4449 How to Pick a Click-and-Pop Suppressor

Quality and Environmental Data

Product Reliability Reports: MAX9890.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX9890AEBL+
  • MAX9890AEBL+T
  • MAX9890AETA+
  • MAX9890AETA+T
  • MAX9890BEBL+
  • MAX9890BEBL+T
  • MAX9890BETA+
  • MAX9890BETA+T
  • MAX9890BETA/V+
  • MAX9890BETA/V+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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