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JKing.3
JKing.3
Associate II
July 18, 2023
Solved

IMP23ABSU vs MP23ABS1

Does anybody know if there is any difference between these two MEMS Microphones. The IMP23ABSU does have some Ultrasonic characteristics, but my understanding is the MEMS mics would have ultrasonic bandwidth anyway.

Thanks

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Federica Bossi
Federica BossiBest answer
ST Technical Moderator
July 18, 2023

Hi @JKing.3 ,

Their performances are pretty similar, the main difference is that the IMP23ABSU has been characterized in frequency response up to 80kHz (for ultrasound analysis, see AN5522) and it has been qualified for industrial applications, while the MP23ABS1 is recommended for consumer applications.

If my reply answered your question, please click on Accept as Solution at the bottom of this post. This will help other users with the same issue to find the answer faster :)

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2 replies

Federica Bossi
Federica BossiBest answer
ST Technical Moderator
July 18, 2023

Hi @JKing.3 ,

Their performances are pretty similar, the main difference is that the IMP23ABSU has been characterized in frequency response up to 80kHz (for ultrasound analysis, see AN5522) and it has been qualified for industrial applications, while the MP23ABS1 is recommended for consumer applications.

If my reply answered your question, please click on Accept as Solution at the bottom of this post. This will help other users with the same issue to find the answer faster :)

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question.
JKing.3
JKing.3Author
Associate II
July 18, 2023

Thanks Federica, that's useful information.

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