ICS‐40638 High AOP Analog MEMS Microphone with Differential Output GENERAL DESCRIPTION APPLICATIONS The ICS‐40638 is an analog MEMS microphone with very high Automotive dynamic range and capable of operation up to 105°C. The ICS‐ Still and video cameras 40638 includes a MEMS microphone element, an impedance IoT devices converter, and a differential output amplifier. Other high‐performance specifications include 138 dB SPL acoustic overload point, tight ±1 dB sensitivity tolerance and enhanced immunity to both radiated and conducted RF interference. FEATURES The ICS‐40638 is available in a small 3.50 mm × 2.65 mm × 0.98 mm bottom port surface‐mount package. SPEC PERFORMANCE
SNR 63 dBA Current 170 µA AOP 138 SPL Differential non‐inverting analog output −43 dBV sensitivity (differential) ±1 dB sensitivity tolerance Extended frequency response from 35 Hz to 20 kHz Enhanced RF immunity −81 dB PSRR 3.50 × 2.65 × 0.98 mm surface‐mount package Compatible with Sn/Pb and Pb‐free solder processes RoHS/WEEE compliant FUNCTIONAL BLOCK DIAGRAM ORDERING INFORMATION
PART TEMP RANGE PACKAGING ICS‐40638 −40°C to +105°C 13” Tape and Reel EV_ICS‐40638‐FX — InvenSense Inc. InvenSense, Inc. reserves the right to change the 1745 Technology Drive, San Jose, CA 95110 U.S.A Document Number: DS‐000281 detail specifications as may be required to permit +1(408) 988–7339 Revision: 1.1 improvements in the design of its products. www.invensense.com Rev Date: 4/15/2020
