The INMP411 is a high performance, high SPL, low noise, low power, analog output bottom-ported, omnidirectional MEMS microphone. The INMP411 consists of a MEMS microphone element and an impedance converter amplifier. The INMP411 sensitivity specification makes it an excellent choice for both near field and far field applications. The INMP411 is pin-compatible with the INMP401 microphone, providing an easy upgrade path.
The INMP411 has a linear response up to 131 dB SPL. It offers high SNR and extended wideband frequency response resulting in natural sound with high intelligibility. Low current consumption enables long battery life for portable applications.
The INMP411 is available in a miniature 4.72 × 3.76 × 1.0 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation.
Note: The INMP411 is marked as EOL and is not recommended for new designs
| Part # | Market Status | Output | Port Location | SNR | AOP | Sensitivity | Package Size | LF Cutoff |
|---|---|---|---|---|---|---|---|---|
| UNITS: | dBA | dB SPL | dBV | (mm) | Hz |
| Part # | Market Status | Output | Port Location | SNR | AOP | Sensitivity | Package Size | LF Cutoff |
|---|---|---|---|---|---|---|---|---|
| UNITS: | dBA | dB SPL | dBV | (mm) | Hz | |||
 INMP411 |
EOL | Analog | Bottom | 62 | 131 | -46 | 4.72 x 3.76 x 1 | 28 |
INMP411 Datasheet
AN-100 – MEMS Microphone Handling and Assembly 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-0207 – High-Performance Analog MEMS Microphone Simple Interface to SigmaDSP Audio Codec
AN-1165 – Op Amps for MEMS Microphone Preamp Circuits
AN-1181 – Using a MEMS Microphone in a 2-Wire Microphone Circuit
Low Self Noise: The First Step to High-Performance MEMS Microphone Applications
Analog and Digital MEMS Microphone Design Considerations
Understanding Microphone Sensitivity
