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INMP621 Datasheet Wide Dynamic Range Microphone

Manufacturer: InvenSense

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Datasheet Details

Part number INMP621
Manufacturer InvenSense
File Size 451.19 KB
Description Wide Dynamic Range Microphone
Download INMP621 Download (PDF)

General Description

The INMP621*is a high sound pressure level (SPL), ultra-low noise, low power, digital output, bottom ported omnidirectional MEMS microphone.

This microphone clips at 133 dB SPL, which is useful for clearly capturing audio in loud environments.

The INMP621 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order Σ-Δ modulator.

Overview

INMP621 Wide Dynamic Range Microphone with PDM Digital Output.

Key Features

  • High Acoustic Overload Point of 133 dB SPL.
  • Small, Thin 4 × 3 × 1 mm Surface-Mount Package.
  • Omnidirectional Response.
  • Very High Signal-to-Noise Ratio (SNR): 65 dBA.
  • Sensitivity of.
  • 46 dBFS.
  • Extended Frequency Response from 45 Hz to >20 kHz.
  • Low Current Consumption: 1.2 mA.
  • Sleep Mode for Extended Battery Life: 5.5 µA.
  • High Power Supply Rejection (PSR):.
  • 100 dBFS.
  • Fourth-Order Σ-Δ Modulator.

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