MP23AB01DH *

High-performance MEMS audio sensor: fully differential analog bottom-port microphone


  • High signal-to-noise ratio
  • Fully differential output
  • High bandwidth
  • Package compliant with reflow soldering

Important note:

ST recently set the part to "Not recommended for new Designs" 
Have immediately a look at the alternative: MP23ABS1.

You find information at EBV by searching for "MP23ABS1" or use this link.


(The MP23AB01DH is a compact, low-power microphone built with a capacitive sensing element and an IC interface. It has a sensitivity of 38 dB ±1 dB, an acoustic overload point of 135 dBSPL with minimum 65 dB signal-to-noise ratio and fully differential output.

And it is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.)



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  • Single supply voltage operation
  • Omnidirectional sensitivity
  • High RF immunity
  • All devices requiring a microphone