INMP411

Omnidirectional Microphone with Bottom Port and Analog Output

GENERAL DESCRIPTION

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 near-

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 4.72 × 3.76 × 1.0 mm surface-

mount package. It is reflow solder compatible with no

sensitivity degradation.

*Protected by U.S. Patents 7,449,356; 7,825,484; 7,885,423; and 7,961,897.

Other patents are pending.

APPLICATIONS

•

Fire and Safety Radios

•

Safety Masks

•

Tablet Computers

•

Teleconferencing Systems

•

Studio Microphones

•

Security and Surveillance

FEATURES

•

4.72 × 3.76 × 1.0 mm Surface-Mount Package

•

High 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

ORDERING INFORMATION

PART

TEMP RANGE

INMP411ACEZ-R0*

−40°C to +85°C

INMP411ACEZ-R7†

−40°C to +85°C

EV_INMP411-FX

—

* – 13” Tape and Reel

† – 7” Tape and reel to be discontinued. Check with sales@invensense.com

for availability.

FUNCTIONAL BLOCK DIAGRAM

OUTPUT

AMPLIFIER

INMP411

POWER

VDD GND

OUTPUT

InvenSense reserves the right to change the detail

specifications as may be required to permit

improvements in the design of its products.

InvenSense Inc.

1745 Technology Drive, San Jose, CA 95110 U.S.A

+1(408) 988–7339

www.invensense.com

Document Number: DS-INMP411-00

Revision: 1.0.

Rev Date: 02/06/2014