MEMS audio sensor omnidirectional digital microphone for industrial applications
Product status link
-40 to +85
(3 x 4 x 1 mm)
Tape and reel
• Single supply voltage
• Low power consumption
• AOP = 122.5 dBSPL
• 64 dB signal-to-noise ratio
• Omnidirectional sensitivity
• –26 dBFS ±3 dB sensitivity
• PDM output
• HCLGA package
– Top-port design
– ECOPACK, RoHS, and “Green” compliant
• Anti-tampering devices
• Vibration monitoring
• Audio-activated functions
• Predictive maintenance
• Noise cancelling
• Sound detection for alarm systems
• Human / machine voice interface
• Anti-theft systems
The IMP34DT05 is an ultra-compact, low-power, omnidirectional, digital MEMS
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 dedicated to producing audio sensors.
The IC interface is manufactured using a CMOS process that allows designing a
dedicated circuit able to provide a digital signal externally in PDM format.
The IMP34DT05 is a low-distortion digital microphone with a 64 dB signal-to-noise
ratio and –26 dBFS ±3 dB sensitivity.
The IMP34DT05 is available in a top-port, SMD-compliant, EMI-shielded package
and is guaranteed to operate over an extended temperature range from -40 °C to
DS12725 - Rev 3 - April 2019
For further information contact your local STMicroelectronics sales office.