The ICS-40720 is an ultra-low noise, differential analog output, bottom-ported MEMS microphone. The ICS-40720 includes a MEMS microphone element, an impedance converter, a differential output amplifier and an enhanced RF package. The ICS-40720’s 70 dB SNR and ±2 dB sensitivity tolerance make it an excellent choice for microphone arrays and voice control applications.

The ICS-40720 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-40720 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 70 124 -32 4 x 3 x 1.2 75


  • Ultra-High 70 dBA SNR
  • −32 dBV Differential Sensitivity, −38 dBV Single-Ended Sensitivity
  • ±2 dB Sensitivity Tolerance
  • Small 4 mm × 3 mm × 1.2 mm Surface-Mount Package
  • Non-Inverted Signal Output
  • Extended Frequency Response from 75 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