GENERAL DESCRIPTION
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.

APPLICATIONS
 Automotive
 Still and video cameras
 IoT devices

FEATURES
SPEC PERFORMANCE
SNR 63 dBA
Current 170 μA
AOP 138 SPL
 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
 3.50 × 2.65 × 0.98 mm surface‐mount package
 Compatible with Sn/Pb and Pb‐free solder processes
 RoHS/WEEE compliant