The ICS-40740 is an ultra-low noise, high dynamic range, differential analog output, bottom-ported MEMS microphone. The ICS-40740 includes a MEMS microphone element, an impedance converter, a differential output amplifier and an enhanced RF package. The ICS-40740’s 70 dB SNR and ±1 dB sensitivity tolerance make it an excellent choice for microphone arrays and far field voice control applications.

The ICS-40740 has a linear response up to 132.5 dB SPL with a differential output sensitivity specification of −37.5 dBV.

The ICS-40740 is available in a small 4.00 mm × 3.00 mm × 1.20 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 70 132.5 -37.5 4 × 3 × 1.2 80

Documentation & Resources


  • Ultra-High 70 dBA SNR
  • −37.5 dBV Sensitivity
  • ±1 dB Sensitivity Tolerance
  • Small 4 × 3 × 1.2 mm Surface-Mount Package
  • Extended Frequency Response from 80 Hz to 20 kHz
  • 165 µA Current Consumption
  • 132.5 dB SPL Acoustic Overload Point
  • −87 dBV PSR
  • Compatible with Sn/Pb and Pb-Free Solder Processes
  • RoHS/WEEE Compliant

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