Andrea De Marcellis's Analog Circuits and Systems for Voltage-Mode and PDF

By Andrea De Marcellis

ISBN-10: 9048198275

ISBN-13: 9789048198276

This e-book describes novel circuit and procedure strategies for the layout of analog digital interfaces for resistive, capacitive and temperature sensors, additionally displaying a large edition diversity, with the cause to offer an entire review of the 1st analog front-ends. After an outline of the most types of sensors and their definitions, the e-book provides novel digital circuits, so much of which don't require any preliminary calibration, additionally designed with analog microelectronic recommendations, at transistor point in a customary CMOS built-in know-how. those strategies make the most of either AC and DC excitation voltages for the hired sensor and are constructed either in Voltage-Mode method (which considers using Operational Amplifiers or Operational Transconductance Amplifiers because the major lively blocks) and in Current-Mode strategy (using the second one iteration present Conveyor because the major, lively device), in addition to with Low Voltage Low energy features while designed for moveable functions and instrumentations.

The interfaces defined during this booklet may be fabricated simply either as prototype forums, for a quick characterization (simply applied through scholars and technicians) and as built-in circuits, utilizing glossy layout recommendations.

  • Provides a radical advent and outline of sensors and easy resistive, capacitive and temperature sensor interfacing including their major features and parameter definitions;
  • Includes a whole assessment of the 1st analog front-ends, specifically for wide-range resistive and capacitive actual and chemical sensors;
  • Describes interfaces which are effortless to appreciate and enforce either with discrete elements for PCB fabrication and in a customary CMOS built-in technology.

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97(13), 133509-133509–3 (2010) 68. L. A. C. T. Campbell, Improved pyroelectric detectors for single crystal adsorption calorimetry from 100 to 350 K. Rev. Sci. Instrum. 81(2), 024102024102–9 (2010) 69. M. Schossig, V. Norkus, G. Gerlach, Infrared responsivity of pyroelectric detectors with nanostructured NiCr thin-film absorber. IEEE Sens. J. 10(10), 1564–1565 (2010) 70. P. Zappi, E. Farella, L. Benini, Tracking motion direction and distance with pyroelectric IR sensors. IEEE Sens. J. 10(9), 1486–1494 (2010) 71.

3 (angular). In particular, that shown in Fig. 3b depicts an angular potentiometric resistive sensor whose typical electrical output response, as a function of the input mechanical parameter, is almost linear. Based on different transduction mechanisms, other resistive sensors which can be considered are the thermistors (temperature-sensitive semiconductor devices) and the light-dependent resistors (or photo-resistors), which react to the presence of the light. Moreover, resistive sensors can be employed for the level detection of liquid substances, as shown in the example reported in Fig.

8 Typical measurement configurations for photodiode devices: (a) an incident radiation generates a photo-current (photovoltaic mode); (b) the generated photo-current, depending on the incident radiation, flows into a load resistor providing an output voltage signal (photoconductive mode) The photoconductivity effect is detectable in a homogeneous semiconductor, while the photovoltaic one can be observed in a semiconductor device excited by a built-in electrical field. The more diffused device for these aims is the junction diode, whose measurement configurations are shown in Fig.

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Analog Circuits and Systems for Voltage-Mode and Current-Mode Sensor Interfacing Applications by Andrea De Marcellis


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