chapter+3 - Understand the usage of the ADC according to...

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Understand the usage of the ADC according to its timing diagram and design a circuit that produces output within the desired range. Understand the characteristic and operating principle of Successive Approximation ADCs ② Understand the characteristic and operating principle of ADCs 3. Theory Successive Approximation ADC, with its rapid converting speed and high resolution, is being widely used. It also is advantageous that i t has a re la t ive ly simple circuit architecture and low power consumption. The operating speed and resolution are limited by the speed, resolution and linearity of the DAC. Successive Approximation ADC decides on the digital code that corresponds to the analog input by approximation. This converter comprises of a comparator, a DAC and a successive approximation register (SAR) as shown on figure 3-1. Successive Approximation
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V ref V I1 V I2 0 V ref V ref 2 1 4 3 V ref 4 1 V ref 8 5 V ref 8 3 (100) (110) (010) (101) (011) Figure 3-2 Operating principle of a Successive Approximation ADC Figure 3-2 shows the operating principle of successive approximation ADC. Input signal is compared with V
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This note was uploaded on 11/08/2011 for the course EE 111 taught by Professor Kim during the Spring '11 term at Korea University.

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chapter+3 - Understand the usage of the ADC according to...

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