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ADMP504:  UltraLow Noise Microphone with Bottom Port and Analog Output

Product Status:Production
Data
Sheet
ADMP504 Data Sheet Rev A, 06/2012 (pdf 266kB)

Product Details

Product Status:Production
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The ADMP504 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. 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.

APPLICATIONS

  • Smartphones and feature phones
  • Tablet computers
  • Teleconferencing systems
  • Digital still & video cameras
  • Bluetooth headsets
  • Notebook PCs
  • Security and surveillance

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FEATURES and BENEFITS

  • 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 uA
  • 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

Functional Block Diagram for ADMP504

ADMP504 Diagram
Typical Applications and Other Diagrams

Similar Products

Analog Devices has a selection of MEMS microphones with different interfaces, performance levels, and package sizes.

  • Consider ADMP401: Omnidirectional Microphone with Bottom Port and Analog Output
  • Consider ADMP404: Omnidirectional Microphone with Bottom Port and Analog Output
  • Consider ADMP405: Omnidirectional Microphone with Bottom Port and Analog Output
  • Consider ADMP421: Omnidirectional Microphone with Bottom Port and PDM Digital Output
  • Consider ADMP441: Omnidirectional Microphone with Bottom Port and I2S Digital Output
  • Consider ADMP521: Ultra-Low Noise Microphone with Bottom Port and PDM Digital Output
Find Similar Products
By Operating Parameters

Documentation

Title Content Type File Type
ADMP504: Ultralow Noise Microphone with Bottom Port and Analog Output Data Sheet (Rev A, 06/2012) (pdf, 266 kB) Data Sheets PDF
AN-1181: Using a MEMS Microphone in a 2-Wire Microphone Circuit  (pdf, 132 kB) Application Notes PDF
AN-1165: Op Amps for MEMS Microphone Preamp Circuits  (pdf, 165 kB) Application Notes PDF
AN-1140: Microphone Array Beamforming  (pdf, 198 kB) Application Notes PDF
AN-1124: Recommendations for Sealing Analog Devices, Inc., Bottom-Port MEMS Microphones from Dust and Liquid Ingress  (pdf, 111 kB) Application Notes PDF
AN-1112: Microphone Specifications Explained  (PDF, 139 kB) Application Notes PDF
AN-1068: Reflow Soldering of the MEMS Microphone  (pdf, 119 kB) Application Notes PDF
AN-1003: Recommendations for Mounting and Connecting Analog Devices, Inc., Bottom-Ported MEMS Microphones  (pdf, 118 kB) Application Notes PDF
CN-0262: Low Noise Analog MEMS Microphone and Preamp with Compression and Noise Gating  (pdf) Circuit Note PDF
ADI MEMS Mics Set New Bar in Noise Performance
Analog Devices has launched a new family of MEMS microphones with the lowest noise floor in the industry. Learn about the first member of this family, the ADMP504, and how these microphones can give your design a competitive edge. 		Videos HTML
UG-325: EVAL-ADMP504Z-FLEX: Bottom-Ported Analog Output MEMS Microphone Evaluation Board  (pdf, 105 kB) User Guides PDF
MS-2348: Low Self Noise: The First Step to High Performance MEMS Microphone Applications  (pdf, 257 kB) Technical Articles PDF
MS-2275: Common Inter-IC Digital Interfaces for Audio Data Transfer  (pdf, 106 kB)
by Jerad Lewis, Applications Engineer, MEMS Microphone Group, Analog Devices, Inc. 		Technical Articles PDF
A History of Consumer Microphones:  (pdf, 9034 kB)
The Electret Condenser Microphone Meets Micro-Electro-Mechanical-Systems (Accoustics Today, April 2009) 		Technical Articles PDF
Analog Devices Sets High-Performance Benchmark With The Industry’s Lowest-Noise MEMS Microphone (14 Feb 2012) Press Releases HTML
Could software be used to eliminate competitor mics’ response peaks? FAQs/RAQs HTML
Is a microphone with -37 dBV sensitivity better than a microphone with -42 dBV (lower) sensitivity? FAQs/RAQs HTML
Why not design a mic with the highest sensitivity? FAQs/RAQs HTML
Due to open package, are there problems with humidity (condensation) when cooling down/heating up the device? FAQs/RAQs HTML
Can ADI MEMS mics be soldered to a flex PCB? FAQs/RAQs HTML
What is the recommended thickness of the PCB for the ADI MEMS mics? FAQs/RAQs HTML
Could direct soldering to a PCB cause vibration pickup by the mic? FAQs/RAQs HTML
Can digital microphone PDM output be interfaced with I²S directly? FAQs/RAQs HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
Microphone Beamforming Simulation Tool (32-bit)  (zip)
Software tool for simulating the response of microphone beamforming arrays. 		Design Tool ZIP
Microphone Beamforming Simulation Tool (64-bit)  (zip)
Software tool for simulating the response of microphone beamforming arrays. 		Design Tool ZIP

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Engineered. Tested. Ready to Integrate.
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Updated 01/2012
Circuit Note PDF

CN0262:Low Noise Analog MEMS Microphone and Preamp with Compression and Noise Gating

Benefits & Features
  • Built in output compression and noise gating
  • Low noise, analog output microphone
  • MEMs microphone with flat wideband response
  • Microphone conditioning circuit
Products Used

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Available Design Resources

CN0262:Low Noise Analog MEMS Microphone and Preamp with Compression and Noise Gating
Updated 12/2011
Circuit Note PDF

CN0207:High Performance Analog MEMS Microphone's Simple Interface to SigmaDSP Audio Codec

Benefits & Features
  • MEMs microphone with flat wideband response
  • Interface connects directly with audio codec
  • Audio codec with DSP core which enhances post-processing
  • Low power, analog output, high performance microphone
Products Used

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HARDWARE BLOCK DIAGRAM

Available Design Resources

CN0207:High Performance Analog MEMS Microphone's Simple Interface to SigmaDSP Audio Codec

Companion Products

Suggested Companion Products


Recommended Audio Codecs for the ADMP504

  • For a low power SigmaDSP codec with headphone driver and PLL, we recommend the ADAU1761.
  • For a low power SigmaDSP codec with mono speaker driver and PLL, we recommend the ADAU1781.
  • For a low power, 24-bit audio codec with headphone driver and PLL, we recommend the ADAU1361.
  • For a low power, 24-bit audio codec with a fixed-function tunable signal processor, we recommend the ADAU1381.
  • For a low power, multi-channel, 24-bit audio codec in a wafer level chip scale package, we recommend the ADAU1373.
  • For a low power, stereo codec with mono microphone input, we recommend the SSM2603.
Recommended Microphone Preamplifiers for the ADMP504
  • For low noise, variable compression and noise gating, we recommend the SSM2166 or the SSM2167.
  • For low power, ultralow noise, low distortion, we recommend the ADA4075-2 dual opamp.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

ADMP504 Model Options
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADMP504 Flex Eval Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADMP504Z-FLEX Status: Production ADMP504 Flex Evaluation Board $80.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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