High SPL Microphone with

Bottom Port and Analog Output

Data Sheet

ADMP411

Rev. 0

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FEATURES

4.72 mm × 3.76 mm × 1.0 mm surface mount package

131 dB SPL acoustic overload point

Sensitivity of −46 dBV

±2 dB sensitivity tolerance

Omnidirectional response

High SNR of 62 dBA

Extended frequency response from 28 Hz to 20 kHz

Low current consumption: <250 μA

Single-ended analog output

High PSR of −80 dBV

Compatible with Sn/Pb and Pb-free solder processes

RoHS/WEEE compliant

APPLICATIONS

Fire and safety radios

Safety masks

Smartphones and feature phones

Tablet computers

Teleconferencing systems

Digital still and video cameras

Studio microphones

Bluetooth headsets

Security and surveillance

FUNCTIONAL BLOCK DIAGRAM

Figure 1.

Figure 2. Isometric Views of Microphone Package

GENERAL DESCRIPTION

The ADMP4111 is a high performance, high SPL, low noise, low

power, analog output bottom ported, omnidirectional MEMS

microphone. The ADMP411 consists of a MEMS microphone

element and an impedance converter amplifier. The ADMP411

sensitivity specification makes it an excellent choice for both

near field and far field applications. The ADMP411 is pin

compatible with the ADMP401 microphone, providing an

easy upgrade path.

The ADMP411 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 consump-

tion enables long battery life for portable applications.

The ADMP411 is available in a miniature 4.72 mm × 3.76 mm

× 1.0 mm surface-mount package. It is reflow solder compatible

with no sensitivity degradation.

OUTPUT

AMPLIFIER

ADMP411

POWER

OUTPUT