Sökning: "sigma-delta Σ∆"

Hittade 2 avhandlingar innehållade orden sigma-delta Σ∆.

1. 1. Power-Efficient Continuous-Time Incremental Sigma-Delta Analog-to-Digital Converters

   Författare :Sha Tao; Ana Rusu; Franco Maloberti; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; analog-to-digital conversion; sigma-delta modulation; incre- mental ADC; two-step ADC; continuous-time; biosensor applications.;

   Sammanfattning : Over the past decade, there has been a growing interest in the devel- opment of integrated circuits (ICs) for wearable or implantable biosensors, aiming at providing personalized healthcare services and reducing the health-care expenses. In biosensor ICs, the analog-to-digital converter (ADC) is a key building block that acts as a bridge between analog signals and digital processors. LÄS MER

3. 2. SiC Readout IC for High Temperature Seismic Sensor System

   Författare :Ye Tian; Carl-Mikael Zetterling; Ana Rusu; Philip A. Mawby; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon carbide SiC ; bipolar junction transistor BJT ; integrated circuit IC ; sigma-delta Σ∆ ; data conversion; operational amplifier OpAmp ; VBIC; SPICE Gummel-poon; high-temperature; electromechanical; accelerometer; capacitive sensor; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : Over the last decade, electronics operating at high temperatures have been increasingly demanded to support in situ sensing applications such as automotive, deep-well drilling and aerospace. However, few of these applications have requirements above 460 °C, as the surface temperature of Venus, which is a specific target for the seismic sensing application in this thesis. LÄS MER