Chapter 05B - AI to DI Converter

Chapter 05B - AI to DI Converter - ANALOG ANALOG-TO...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ANALOG ANALOG-TO TO-DIGITAL CONVERTOR DIGITAL CONVERTOR ¡ Involve two operations, which are the sampling process and quantization process. ¡ Sampling operation is carried out by “sample-and-hold” device. ¡ Quantization process is carried t b t h e a a l o g igital out by the analog-to-digital convertor. Dr. Abdirahman CHAPTER 5 Page 23 of 83 Example : V(t) is a continuous signal (analog) which received from the sensing element is received from the sensing element. v Input Signal (Analog) Time Dr. Abdirahman CHAPTER 5 Page 24 of 83 V(t) can be represented by a set of sample V i where i = 1,2,3,4….. N taken at discrete interval DT (sampling t l ) interval). Dr. Abdirahman CHAPTER 5 Page 25 of 83 Data sampling function Data sampling function V i 1 Time Sampling Frequency, fs = 1 Sampling Frequency, fs = 1 Δ T Δ T Dr. Abdirahman CHAPTER 5 Page 26 of 83 Sampled signal : Sampled signal : V s 1 Time ampling frequency fs = 1 ampling frequency fs = 1 Δ T Dr. Abdirahman CHAPTER 5 Page 27 of 83 Sampling frequency, fs = 1 Sampling frequency, fs = 1 Δ T • Since the operation of changing from analog to digital takes couple of miliseconds, output sample has to remain constant while waiting for the next change....
View Full Document

This note was uploaded on 05/09/2010 for the course CHE 3022 taught by Professor Abdirahman during the Fall '07 term at National Central University.

Page1 / 16

Chapter 05B - AI to DI Converter - ANALOG ANALOG-TO...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online