Omnidirectional Microphone with Bottom Port and Analog Output

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Replacement Parts

Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.

Product Details

Analog Devices has sold its MEMS Microphone product line to InvenSense.
Please visit the InvenSense ADMP401 product page for all technical support and sales information.

The ADMP401 is a high quality, low cost, low power analog output bottom-ported omnidirectional MEMS microphone. The ADMP401 consists of a MEMS microphone element, an impedance converter, and an output amplifier. The ADMP401 sensitivity specification makes it an excellent choice for both near field and far field applications. The ADMP401 has a high SNR and flat wideband frequency response, resulting in natural sound with high intelligibility. Low current consumption enables long battery life for portable applications. The ADMP401 complies with the TIA-920 standard Telecommunications Telephone Terminal Equipment Transmission Requirements for Wideband Digital Wireline Telephones.

The ADMP401 is available in a thin, 4.72 mm × 3.76 mm × 1.0 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation. The ADMP401 is halide free.


  • Smartphones and feature phones
  • Digital video cameras
  • Bluetooth headsets
  • Video phones
  • Teleconferencing systems