MEMS audio sensor high-performance analog bottom-port microphone

The MP23AB02B is a compact, low-power microphone built with a low-profile sensing element.

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

The MP23AB02B has an acoustic overload point of 124 dBSPL with a 64dB signal-to-noise ratio.

The MP23AB02B 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
  • Low power consumption
  • Omnidirectional sensitivity
  • High signal-to-noise ratio
  • High bandwidth
  • Package compliant with reflow soldering


Technical Documentation

Product Specifications
Description Version Size
DS10256 DS10256: MEMS audio sensor high-performance analog bottom-port microphone 3.0 520 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
AN4211 AN4211: Guidelines for soldering MEMS microphones 4.0 688 KB
AN4598 AN4598: Pre-amplifying the analog output of a MEMS microphone 1.0 325 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
MP23AB02BTR RHLGA 3.35*2.5 3LD METAL CAP Tape And Reel Active - - NEC EAR99 - MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY

(*) 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**
MP23AB02BTR ActiveRHLGA 3.35*2.5 3LD METAL CAPIndustrialEcopack2 0 0

(**) The Material Declaration forms available on 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.