IMP23ABSU – Analog bottom port microphone with frequency response up to 80kHz

The IMP23ABSU 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 IMP23ABSU has an acoustic overload point of 130 dBSPL with a typical 64 dB signal-to-noise ratio. The sensitivity of the IMP23ABSU is -38 dBV ±1 dB @ 94 dBSPL, 1 kHz.

The IMP23ABSU 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 1.52 V – 3.6 V
• Omnidirectional sensitivity
• High signal-to-noise ratio
• High acoustic overload point: 130 dBSPL typ.
• Package compliant with reflow soldering
• Enhanced RF immunity
• Ultra-flat frequency response
• Ultrasound bandwidth (up to 80 kHz)
• Low latency
• Ultra-low-power: 150 µA max.
• ECOPACK, RoHS, and “Green” compliant

more information: https://www.st.com/en/mems-and-sensors/imp23absu.html

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