Ultra-Low Noise Microphone with Differential Output

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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.

• Smartphones
• Tablet Computers
• Teleconferencing Systems
• Digital Still and Video Cameras
• Bluetooth Headsets
• Security and Surveillance
• Microphone Arrays
• Voice Control and Activation

Symmetry Electronics is an authorized InvenSense distributor.


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Ultra-High 70 dBA SNR
-32 dBV Differential Sensitivity, -38 dBV Single-Ended Sensitivity
2 dB Sensitivity Tolerance
Small 4 3 1.2 mm Surface-Mount Package
Non-Inverted Signal Output
Extended Frequency Response from 75 Hz to 20 kHz
Enhanced RF Performance
285 A 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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InvenSense Datasheet

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