Summary of IMP23ABSU – ANALOG BOTTOM PORT MICROPHONE WITH FREQUENCY RESPONSE UP TO 80KHZ
The IMP23ABSU is a compact, low-power analog bottom-port MEMS microphone with ultra-flat frequency response and ultrasound bandwidth up to 80 kHz, targeted at ultrasound analysis and predictive maintenance. It offers omnidirectional sensitivity, a typical 64 dB SNR, 130 dBSPL acoustic overload, -38 dBV ±1 dB sensitivity at 94 dBSPL (1 kHz), low latency, enhanced RF immunity, and operates from 1.52 V to 3.6 V across -40 °C to +85 °C. The package is reflow soldering compliant and the device is ECOPACK, RoHS, and Green compliant.
Parts used in the IMP23ABSU Project:
- IMP23ABSU analog bottom-port MEMS microphone
- Capacitive sensing element (silicon micromachined audio sensor)
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
Read more: IMP23ABSU – ANALOG BOTTOM PORT MICROPHONE WITH FREQUENCY RESPONSE UP TO 80KHZ
- What is the frequency response bandwidth of the IMP23ABSU?
The IMP23ABSU provides ultrasound bandwidth up to 80 kHz. - What supply voltage range does the IMP23ABSU support?
The IMP23ABSU operates from a single supply voltage of 1.52 V to 3.6 V. - What is the acoustic overload point of the microphone?
The IMP23ABSU has a typical acoustic overload point of 130 dBSPL. - What is the typical signal-to-noise ratio?
The microphone has a typical 64 dB signal-to-noise ratio. - What is the sensitivity specification?
The sensitivity is -38 dBV ±1 dB at 94 dBSPL, 1 kHz. - What temperature range is the IMP23ABSU guaranteed to operate over?
It is guaranteed to operate from -40 °C to +85 °C. - Is the package reflow soldering compliant?
Yes, the IMP23ABSU is available in a package compliant with reflow soldering. - What are the power and latency characteristics?
The device is ultra-low-power with 150 µA max and features low latency. - Does the IMP23ABSU include environmental and regulatory compliances?
Yes, it is ECOPACK, RoHS, and Green compliant.
