The ICS-40638 is an analog MEMS microphone with very high dynamic range and capable of operation up to 105°C. The ICS-40638 includes a MEMS microphone element, an impedance converter, and a differential output amplifier.

Other high-performance specifications include 138 dB SPL acoustic overload point, tight ±1 dB sensitivity tolerance and enhanced immunity to both radiated and conducted RF interference.

The ICS-40638 is available in a small 3.50 mm × 2.65 mm × 0.98 mm bottom port surface-mount package.

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Product Details

Part # Market Status Output Port Location SNR AOP Sensitivity Package Size LF Cutoff
UNITS: dBA dB SPL dBV (mm) Hz
ICS-40638
ICS-40638
Production Analog Bottom 63 138 -43 3.50 × 2.65 × 0.98 35

Documentation & Resources

Features

  • Differential non-inverting analog output
  • −43 dBV sensitivity (differential)
  • ±1 dB sensitivity tolerance
  • Extended frequency response from 35 Hz to 20 kHz
  • Enhanced RF immunity
  • −81 dB PSRR
  • 50 × 2.65 × 0.98 mm surface-mount package
  • Compatible with Sn/Pb and Pb-free solder processes
  • RoHS/WEEE compliant

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