This work presents the design of a continuous time sigma-delta modulator with a 0.2 MHz signal bandwidth and 78 dB signal-to-noise ratio (SNR), which are the specifications for the GSM standard. Three single-loop, ...

Several applications in the instrumentation field require signal acquisition systems with medium conversion rate and medium to high resolution, among them are the Multielectrode Matrices (MEA). The MEA manufactured on ...

Sigma Delta analogue-to-digital converters allow acquiring the full dynamic range of biomedical signals at the electrodes, resulting in less complex hardware and increased measurement robustness. However, the increased ...

An approach for compensating non-linearities in a continuous-time first-order sigma-delta converter with one bit quantization is presented. The proposed compensators are parallel nonlinear dynamic systems using piecewise ...

A novel photonic analog-to-digital converter based on asynchronous first-order delta-sigma modulation (ADSM) has been theoretically investigated and experimentally demonstrated. The architecture uses an optical leaky ...

The increasing complexity of digital circuits forces the use of new technologies. New technologies have the advantage of reducing the circuit size and power consumption coupled with operation speed increasement. Most of ...