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

The MP23AB01DM is a compact, low-power 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 to produce audio sensors.

The MP23AB01DM has an acoustic overload point of 130 dBSPL with a typical 64 dB signal-to-noise ratio.

The MP23AB01DM has fully differential output in order to minimize common-mode noise.

The sensitivity of MP23AB01DM is -38 dBV ±3 dB @ (0 dB = 1 V/Pa), 1 kHz.

The MP23AB01DM is available in a package compliant with reflow soldering and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

Key Features

  • Single supply voltage operation
  • Fully differential output
  • Omnidirectional sensitivity
  • High signal-to-noise ratio
  • High bandwidth
  • High acoustic overload point
  • Package compliant with reflow soldering
  • High RF immunity


Technical Documentation

Product Specifications
Description Version Size
DS11606 DS11606: High-performance MEMS audio sensor: fully differential analog bottom-port microphone 1.0 415 KB
Application Notes
Description Version Size
AN4428 AN4428: Best practices in the manufacturing process of MEMS microphones 1.1 1 MB
AN4427 AN4427: Gasket design for optimal acoustic performance in MEMS microphones 2.0 840 KB
AN4426 AN4426: Tutorial for MEMS microphones 2.0 947 KB

Presentations & Training Material

Description Version Size
Health and Wellness Mobility Cloud computing 1 MB

Publications and Collaterals

Description Version Size
APWorkbench software for audio ICs and MEMS microphones 1.0 2 MB
MEMS analog and digital microphones 989 KB

Tools and Software

Evaluation Tools
Product Evaluation Tools
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
MP23AB01DMTR RHLGA 3.35*2.5 4LD METAL CAP Tape And Reel NRND - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
MP23AB01DMTR NRNDRHLGA 3.35*2.5 4LD METAL CAPIndustrialEcopack2 0 0

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.