Analogue-digital and Digital-analogue conversion Essay

Analogue-digital and Digital-analogue conversion - Essay Example music record (Dallet and Silva, 2005). Analogue signals are usually continuous and variable in nature are they can be represented by a variable wave. On the other hand, digital signals are multi-level in the sense that it only varies after some predetermined time hence it is easier to predict its future processes. The essence of analogue to digital is to convert the data contained in an analogue signals into a more presentable form without altering the initial content (Pelgrom, 2013). There are numerous methods that are in use when it comes to analogue to digital conversion the type of techniques that is chosen depends on the requirements of the user. For instance, is the user wants a quick conversion technique then he/she will opt for a faster ADC, alternatively if he/she wants an accurate conversion process then he will indeed opt for an accurate ADC. However, in all case the same principle is utilised to conduct the conversion process. The sequence of bits in a typical digital representation infers a number that whereby each bit has twice the weight of the next bit in the sequence, for instance; bn-1, bn-2†¦Ã¢â‚¬ ¦b0 (Shoop, 2001). There are different procedures for A/D transformation, including flash, half blaze, integrator, delta sigma or modulator, progressively rough guess, and voltage-to-recurrence. A flash ADC applies the info in parallel to numerous quick comparators whose edges are just as dispersed all through the sought data voltage range, ordinarily 1V. At any minute, all the comparators that have edges underneath the info voltage are on, and the rest are off. Half-streak simple to advanced converters focus their yield code by digitally joining the aftereffects of two successively performed lower-determination streak changes. An integrator is an ADC whose return system speaks to the standard estimation of the voltage information more than a given time