The ICS-40212 is an analog MEMS microphone with very high dynamic range and a low-power AlwaysOn mode. The ICS-40212 includes a MEMS microphone element, an impedance converter, and an output amplifier.
This microphone features a low-power mode, which is active when the supply voltage is <2.0V. In this mode, the ICS-40212 operates with 55 μA.
Other high-performance specifications include 128 dB SPL acoustic overload point in high performance mode, tight ±1 dB sensitivity tolerance.
The ICS-40212 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-40212 |
Production | Analog | Bottom | 66 | 128 | -38 | 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-1112 – Microphone Specifications Explained
AN-1124 – Recommendations for Sealing InvenSense Bottom-Port MEMS Microphones from Dust and Liquid Ingress
AN-1140 – Microphone Array Beamforming
AN-1003 – Recommendations for Mounting and Connecting InvenSense MEMS Microphones
AN-1165 – Op Amps for MEMS Microphone Preamp Circuits
Low Self Noise: The First Step to High-Performance MEMS Microphone Applications
Analog and Digital MEMS Microphone Design Considerations
Understanding Microphone Sensitivity
