3 papers
eess.AS2026
A 399uW 114.3 dB DR Companding Readout ASIC for MEMS Microphones Employing a Multirate Time-Domain ADC
Javier Granizo, Ruben Garvi, Ricardo Carrero +5
Improvements in the dynamic range and sensitivity of digital MEMS microphones are essential in applications like advanced noise canceling and voice recognition. A cost effective so…
eess.SP2026
Analytical Derivation of Quantization Error in Threshold Level Quantizers Using Bipolar PFM
Ricardo Carrero, Ruben Garvi, Luis Hernandez
Uniform quantization is a topic that has been extensively studied. However and although an analytical description of quantization noise has been proposed, most descriptions of the…
eess.SY2024
A Second-Order Audio VCO-ADC with 103-dB-A Dynamic Range and Binary-Weighted Internal Architecture
Victor Medina, Ruben Garvi, Javier Granizo +2
One of the limitations of conventional VCO-ADCs is the restriction to first-order noise shaping. True-VCO architectures have been proposed to increase the noise-shaping order by ca…