ADMP521 Datasheet - Analog Devices

ADMP521 Ultralow Noise Microphone

The ADMP5211 is a high performance, ultralow noise, low power, digital output, bottom-ported omnidirectional MEMS microphone. The ADMP521 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order sigma-delta (Σ-Δ) modulator. The digital interface allows fo.

ADMP521 Features

* Ultralow Noise Microphone with Bottom Port and PDM Digital Output ADMP521 FUNCTIONAL BLOCK DIAGRAM ADMP521 ADC PDM MODULATOR CLK DATA Small and thin 4 mm × 3 mm × 1 mm surface-mount package Omnidirectional response Very high SNR: 65 dBA Sensitivity of

* 26 dBFS Extended frequency response f

ADMP521_AnalogDevices.pdf