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.
| Part # | Market Status | Output | Port Location | SNR | AOP | Sensitivity | Package Size | LF Cutoff |
|---|---|---|---|---|---|---|---|---|
| UNITS: | dBA | dB SPL | dBV | (mm) | Hz | |||
 ICS-40638 |
Production | Analog | Bottom | 63 | 138 | -43 | 3.50 × 2.65 × 0.98 | 35 |
AN-100 – MEMS Microphone Handling and Assembly Guide
AN-000013 – Analog Output MEMS Microphone Flex Evaluation Board User Guide
AN-000172 Using MEMS Microphones in Directional Applications v1.0
AN-1003 – Recommendations for Mounting and Connecting InvenSense MEMS Microphones
AN-1112 – Microphone Specifications Explained
AN-1140 – Microphone Array Beamforming
