ADCSRA(ADC Status and Control Register)C. ADMUX(ADC Multiplexer Selection Register)B. REGISTERS OF ADC There are four type of register which we use in ADCA. NEED OF ADC IN EMBEDDEDThe microcontroller is a digital device so it needsdigital input to process.But a number of input devices available which givesanalog signal.So its necessary to convert analog signals to digitalsignalsIts done by Analog to Digital Circuit inside amicrocontroller. ANALOG-TO-DIGITAL CONVERSIONTerminologyanalog: continuously valued signal, such as temperature orspeed, with infinite possible values in betweendigital: discretely valued signal, such as integers, encoded inbinaryAn embedded systems surroundings typically involve manyanalog signals. DEFINITIONAn analog-to-digital converter, or ADC as it is more commonlycalled, is a device that converts analog signals into digitalsignals.ORAn analog-to-digital converter (ADC, A/D, or A to D) is a devicethat converts a continuous physical quantity (usually voltage) toa digital number that represents the quantity's amplitude 4. CONTENTS Definition Need of ADC in EMBEDDEDRegisters of ADCTypes of ADCApplications 3. Analog to Digital ConverterSUBMITTED BY:-Madhusudhan AgarwalĢ.
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