ADMP401-1 Datasheet | Analog Devices

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 patible with Sn/Pb and Pb-free solder processes RoHS/WEEE pliant 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 patible with no sensitivity degradation. APPLICATIONS Cell phones PC audio Digital cameras Bluetooth headsets FUNCTIONAL BLOCK DIAGRAM MEMS ASIC BUFFER MEMS SIGNAL - OUTPUT DRIVER http://..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 accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any...