Design of an On-Chip Tracking ADC

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    Data acquisition and conversion systems require analog signals to be converted into a digital form that can be used for further analysis. The analog signals are mostly output of sensors and transducers which transform the real-world signals into electrical signals. These electrical signals are modified to digital form by using Analog to Digital Converters (ADC). This conversion involves sampling followed by a quantization of the input signal thus will be converted to digital signal. The bandwidth of the ADC is restricted by the sampling rate and the quantization error should be kept as low as possible for better accuracy. This paper emphasis on the On-Chip design of a 12-bit Tracking ADC using PSoC which is highly reliable for digitizing the slowly varying signals. Complication encumbered in the logic that connects comparator and counter is replaced by using dual comparators, and an XOR gate. The proposed design has immense leverage in providing stable and constant data for instantaneous signal value. The major involvement is shown in making the design very simple, by efficiently using the available components, thus providing much accurate and stable digital data for further processing the slowly varying signal.

     

     


  • Keywords


    ADC, UART, PSoC, LabVIEW.

  • References


      [1] D.A. Rauth and V.T. Randal, “Analog-to-digital conversion”, IEEE Instrumentation & Measurement Magazine, vol. 8, no. 4, pp. 44 –54, Oct. 2005

      [2] PSoC Creator, version 2.2, www.cypress.com/?id=2494.

      [3] PSoC Programmable System on Chip, Technical Reference Manual, Document No. 001

      [4] Ross Fosler, “Getting started with PSoC3”, Application Note-AN54181, Cypress Semiconductor Corporation.

      [5] S. Rapuano, P. Daponte, E. Balestrieri, L. D. Vito, S. J. Tilden, S. Max, and J. Blair, “ADC Parameters and Characteristics”, IEEE Instrumentation & Measurement Magazine 1094-6969/05, 2005

      [6] Walter Allan Kester, “Data Conversion Handbook” ‎Analog Devices Inc Engineeri, ‎Analog Devices, inc. Engineering staff - 2005 - ‎Computers


 

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Article ID: 23784
 
DOI: 10.14419/ijet.v7i4.36.23784




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