ADMP401-1

Preliminary Technical Data FEATURES 4.72 mm × 3.76 mm × 1.0 mm surface mount package High SNR: 62 dBA High sensitivity: −37 dBV Flat frequency response from 100 Hz to over 12 kHz Low current consumption: <200 μA Single-ended analog output High PSRR: >50 dB Compatible with Sn/Pb and Pb-free solder processes RoHS/WEEE compliant Omnidirectional Microphone with Bottom Port and Analog Output ADMP401-1 GENERAL DESCRIPTION The ADMP401-1 is a high quality, low cost, low power analog output bottom-ported omnidirectional MEMS microphone. The ADMP401-1 consists of a MEMS microphone element and an output amplifier. The ADMP401-1 has a high SNR and high sensitivity, making it an excellent choice for far field applications. The ADMP401-1 has a flat wideband frequency response resulting in natural sound with high intelligibility. Low current consumption enables long battery life for portable applications. A built-in particle filter provides for high reliability. The ADMP401-1 is available in a thin 4.72 mm × 3.76 mm × 1.0 mm surface mount package. The ADMP401-1 is reflow solder compatible with no sensitivity degradation. APPLICATIONS Cell phones PC audio Digital cameras Bluetooth headsets FUNCTIONAL BLOCK DIAGRAM MEMS ASIC BUFFER MEMS SIGNAL – OUTPUT DRIVER http://www.DataSheet4U.net/ OUTPUT + VDD GND MEMBRANE BACKPLATE REFERENCE VOLTAGE BIAS CURRENT MEMS VBIAS FILTER CHARGE PUMP GENERATOR 07712-001 Figure 1. Rev. PrB Information furnished by Analog Devices is believed to be ac...