MEMS audio sensor omnidirectional digital microphone for industrial applications


  • Single supply voltage
  • Low power consumption
  • AOP = 122.5 dBSPL
  • 64 dB signal-to-noise ratio

The IMP34DT05 is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface.

The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to producing audio sensors.

The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit able to provide a digital signal externally in PDM format.

The IMP34DT05 is a low-distortion digital microphone with a 64 dB signal-to-noise ratio and –26 dBFS ±3 dB sensitivity.

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  • Omnidirectional sensitivity
  • 26 dBFS ±3 dB sensitivity
  • PDM output
  • HCLGA package
    • Top-port design
    • SMD-compliant
    • EMI-shielded
    • ECOPACK®, RoHS, and “Green” compliant
  • Anti-tampering devices
  • Vibration monitoring
  • Audio-activated functions
  • Predictive maintenance
  • Noise cancelling
  • Sound detection for alarm systems
  • Human / machine voice interface
  • Anti-theft systems