ICS-40730
Ultra-Low Noise Microphone with Differential Output
APPLICATIONS
GENERAL DESCRIPTION
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Smart Home Devices
The ICS-40730 is an ultra-low noise, differential analog
output, bottom-ported MEMS microphone. The ICS-40730
includes a MEMS microphone element, an impedance
converter, a differential output amplifier and an enhanced RF
package. The ICS-40730’s 74 dB SNR and ±2 dB sensitivity
tolerance make it an excellent choice for microphone arrays
and far field voice control applications.
Smartphones
Teleconferencing Systems
Security and Surveillance
Microphone Arrays
Voice Control and Activation
FEATURES
The ICS-40730 has a linear response up to 123 dB SPL with a
differential output sensitivity specification of −32 dBV. It can
be used in a single-ended mode with −38 dBV sensitivity and
the same high SNR.
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Ultra-High 74 dBA SNR
−32 dBV Differential Sensitivity, −38 dBV Single-
Ended Sensitivity
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±2 dB Sensitivity Tolerance
4.72 × 3.76 × 3.5 mm Surface-Mount Package
Non-Inverted Signal Output
The ICS-40730 is available in a 4.72 mm × 3.76 mm × 3.50 mm
surface-mount package.
Extended Frequency Response from 20 Hz to 20 kHz
Enhanced RF Performance
285 µA Current Consumption
123 dB SPL Acoustic Overload Point
−77 dBV PSR
Compatible with Sn/Pb and Pb-Free Solder Processes
RoHS/WEEE Compliant
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
PART
ICS-40730
EV_ICS-40730-FX
TEMP RANGE
−40°C to +85°C
PACKAGING
13” Tape and Reel
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OUTPUT+
OUTPUT
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AMPLIFIER
OUTPUT−
POWER
ICS-40730
VDD GND
InvenSense Inc.
1745 Technology Drive, San Jose, CA 95110 U.S.A
InvenSense, Inc. reserves the right to change the detail
specifications as may be required to permit
improvements in the design of its products.
Document Number: DS-000139
Revision: 1.1
Rev Date: 05/19/2020
+1(408) 988–7339
www.invensense.com