The ICS-40730 is an ultra-low noise, differential analog output, bottom-ported MEMS microphone. The ICS-40730 includes a MEMS microphone element, an impedance converter, a differential output amplifier and an enhanced RF package. The ICS-40730’s 74 dB SNR and ±2 dB sensitivity tolerance make it an excellent choice for microphone arrays and far field voice control applications.

The ICS-40730 has a linear response up to 124 dB SPL with a differential output sensitivity specification of −32 dBV. It can be used in a single-ended mode with −38 dBV sensitivity and the same high SNR.

The ICS-40730 is available in a 4.72 mm × 3.76 mm × 3.50 mm surface-mount package.

Product Details

Part # Market Status Output Port Location SNR AOP Sensitivity Package Size LF Cutoff
UNITS: dBA dB SPL dBV (mm) Hz
Production Analog Bottom 74 124 -32 4.72 x 3.76 x 3.5 35

Documentation & Resources


  • Ultra-High 74 dBA SNR
  • −32 dBV Differential Sensitivity, −38 dBV SingleEnded Sensitivity
  • ±2 dB Sensitivity Tolerance
  • 4.72 × 3.76 × 3.5 mm Surface-Mount Package
  • Non-Inverted Signal Output
  • Extended Frequency Response from 25 Hz to 20 kHz
  • Enhanced RF Performance
  • 285 µA Current Consumption
  • 124 dB SPL Acoustic Overload Point
  • −77 dBV PSR
  • Compatible with Sn/Pb and Pb-Free Solder Processes
  • RoHS/WEEE Compliant

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