STMicroelectronics IMP23ABSU
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.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 Product status link IMP23ABSU Product summary Order code IMP23ABSU IMP23ABSUTR Temp. range [°C] -40 to +85 Package (3.5 x 2.65 x 0.98) mm Packing Tray Tape and reel Product label
APPLICATIONS
● Condition monitoring of industrial equipment● Leak detection
● Electrical arcing
● Smart medical instruments
● Wearable devices
● Hearables
● Smart speakers
● Active noise-canceling headsets
DESCRIPTION
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.