Reference Designs
Single-Supply: Electret Microphone Preamplifier Reference Design
Texas Instruments
This TI Precision design details the design process for a preamplifier to be used with electret microphone capsules. It explains the basic construction and operation of an electret microphone and uses an OPA172 to amplify the output of the microphone to common analog line level voltages.
Features
- TI Precision Designs: Verified DesignDesigned for a single 9V battery power supply~2mA supply current68dB SNR with MicrophoneThis design is tested and includes theory: component selection: TINA-TI simulation: PCB schematic & layout: bill of materials: and measured results.
Applications
- Professional microphones & wireless systems
- Piano
- keyboard & synthesizer
- Digital stethoscope
Product Categories
- Amplifiers
End Equipment Reference Diagrams
Application Area
End Equipment
Featured products
| Manufacturer: | Texas Instruments |
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| Status: | ACTIVE |
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| PB Free: | Y |
| Manufacturer: | Texas Instruments |
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| PB Free: | Y |
| Manufacturer: | Texas Instruments |
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| Part Family: | TMUXHS221LV |
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| ROHS: | Y |
| PB Free: | Y |
