STMicroelectronics IMP23ABSU MEMS Microphone
STMicroelectronics IMP23ABSU MEMS Microphone 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 130dBSPL with a typical 64dB signal-to-noise ratio. The sensitivity of the IMP23ABSU is -38dBV ±1dB at 94dBSPL, 1kHz. The STMicroelectronics IMP23ABSU is available in a package compliant with reflow soldering and is guaranteed to operate over a -40°C to +85°C temperature range.
Features
- 1.52V to 3.6V single supply voltage operation
- Omnidirectional sensitivity
- High signal-to-noise ratio
- High acoustic overload point (130dBSPL typical)
- Package compliant with reflow soldering
- Enhanced RF immunity
- Ultra-flat frequency response
- Ultrasound bandwidth (up to 80kHz)
- Low latency
- 150µA maximum current consumption
- ECOPACK, RoHS-compliant, and Green device
Applications
- Condition monitoring of industrial equipment
- Leak detection
- Electrical arcing
- Smart medical instruments
- Wearable devices
- Hearables
- Smart speakers
- Active noise-canceling headsets
Specifications
- 1.52V to 3.6V supply voltage range, 2.75V typical
- 120µA typical current consumption, 150µA maximum
- -39dBV to -37dBV sensitivity range, -38dBV typical
- 64dB(A) typical signal-to-noise ratio
- 60dB typical power supply rejection
- 130dBSPL typical acoustic overload point
- 15kΩ minimum load resistance
- -40°C to +85°C operating temperature range
Associated Boards
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Published: 2020-09-30
| Updated: 2025-08-21