ADMP801

Data Sheet FEATURES Hearing Aid Omnidirectional MEMS Microphone ADMP801 GENERAL DESCRIPTION The ADMP801 is a high performance MEMS microphone with a unique combination of very low self-noise, tiny package volume (7.3 mm3), and low power consumption. Running from a 1 V supply, the ADMP801 consumes only 17 μA of current while providing an equivalent input noise of 27 dBA SPL with an analog 4.5 kΩ impedance output. These features, combined with the benefits of MEMS technology, reflow solder compatibility, and a highly stable response over time and temperature, make the ADMP801 an ideal microphone choice for assistive listening devices (ALDs) such as hearing aids. Small surface-mount package: 3.35 mm × 2.5 mm × 0.98 mm Equivalent input noise: 27 dBA SPL Sensitivity: −35 dBV Hearing aid-compatible voltage range: 0.9 V to 1.3 V Low current consumption: 17 μA 0.8 sec startup to within 0.2 dB of 1 kHz sensitivity Flat frequency response Good sensitivity and frequency response matching Single-ended analog output Compatible with Sn/Pb and Pb-free solder processes RoHS/WEEE compliant APPLICATIONS Hearing aids Hearing aid accessories Assistive listening/alerting and signaling systems Audiometers Bone conduction devices Hearing protection TOP VIEW BOTTOM VIEW Figure 1. Isometric Views of the ADMP801 Microphone Package http://www.DataSheet4U.net/ FUNCTIONAL BLOCK DIAGRAM OUTPUT AMPLIFIER OUTPUT VDD GND Figure 2. Rev. Sp0 Document Feedback One Technology Way, P.O. Box 9106, N...