Ultralow Noise Microphone with

Bottom Port and Analog Output

Data Sheet

ADMP504

Rev. 0

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FEATURES

Tiny, 3.35 mm × 2.5 mm × 0.88 mm surface-mount package

Omnidirectional response

Very high SNR of 65 dBA

Sensitivity of −38 dBV

Extended frequency response from 100 Hz to 20 kHz

Low current consumption: 180 μA

Single-ended analog output

120 dB maximum SPL

High PSR of 70 dBV

Compatible with Sn/Pb and Pb-free solder processes

RoHS/WEEE compliant

APPLICATIONS

Smartphones and feature phones

Tablet computers

Teleconferencing systems

Digital still and video cameras

Bluetooth headsets

Notebook PCs

Security and surveillance

FUNCTIONAL BLOCK DIAGRAM

OUTPUT

AMPLIFIER

ADMP504

POWER

OUTPUT

Figure 1.

TOP ISO

BOTTOM ISO

Figure 2. Isometric Views of ADMP504 Microphone Package

GENERAL DESCRIPTION

The ADMP5041 is a high performance, very low noise, low

power, analog output, bottom-ported omnidirectional MEMS

microphone. The ADMP504 consists of a MEMS microphone

element, an impedance converter and an output amplifier. The

ADMP504 sensitivity specification makes it an excellent choice

for both near field and far field applications. The ADMP504 is

function- and pin-compatible with the ADMP404 microphone,

providing an easy upgrade path.

The ADMP504 has very high SNR and extended 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

high reliability. The ADMP504 complies with the TIA-920

Telecommunications Telephone Terminal Equipment Transmis-

sion Requirements for Wideband Digital Wireline Telephones

standard.

The ADMP504 is available in an ultraminiature 3.35 mm ×

2.5 mm × 0.88 mm surface-mount package. It is reflow solder

compatible with no sensitivity degradation. The ADMP504 is

halide free.