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What is CMOS Interfaces for MEMS Microphones about?

This PhD dissertation presents three novel low-power and low-noise readout interfaces for MEMS capacitive microphones (MCMs) developed as application-specific integrated circuits (ASICs) in CMOS technology. The first interface uses a bootstrapped preamplifier and third-order sigma-delta modulator achieving 55dBA/Pa SNDR at 1.8V and 460uA. The second interface applies force feedback to enhance linearity and minimize sensor drift, achieving 40dBA/Pa SNDR at 3.3V and 300uA. The third interface is a chopper-sta

Author

Khaled Aggour

Language

EN