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
