Part Number
|
ADMP421 |
Manufacturer
|
Analog Devices |
Description
|
Omnidirectional Microphone |
Published
|
Apr 26, 2013 |
Detailed Description
|
Data Sheet
Omnidirectional Microphone with Bottom Port and Digital Output ADMP421
FEATURES
GENERAL DESCRIPTION
Small...
|
Datasheet
|
ADMP421
|
Overview
Data Sheet
Omnidirectional Microphone with Bottom Port and Digital Output ADMP421
FEATURES
GENERAL DESCRIPTION
Small and thin 3 mm × 4 mm × 1 mm surface-mount package
The ADMP421 is a high performance, low power, digital output
High SNR of 61 dBA
bottom-ported omnidirectional MEMS microphone.
The
High sensitivity of −26 dBFS
ADMP421 consists of a MEMS microphone element and an
Flat frequency response from 100 Hz to 15 kHz
impedance converter amplifier followed by a fourth-order Σ-Δ
Low current consumption: 650 µA
modulator.
The digital interface allows for the pulse density
Sleep mode for extended battery life High PSR of 80 dBFS Fourth-order Σ-Δ modulator Digital PDM output C...
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