Das Dual-Slope-Verfahren ist ein abgewandeltes Slope-Verfahren und gehört zu den langsameren Verfahren der A/D-Wandler. A dual-slope ADC (DS-ADC) integrates an unknown input voltage (V IN) for a fixed amount of time (T INT), then "de-integrates" (T DEINT) using a known reference voltage (V REF) for a variable amount of time. Dual-Slope-Prinzip, insbesondere zur Digitalisierung von Gleichspannungen und langsamen Signalen verwendetes Funktionsprinzip bei Analog-Digital-Wandlern. The counter gets incremented by one for every clock pulse and its value will be in binary (digital) format. Our portfolio of ADCs offers high speed devices with sampling speeds up to 10.4 GSPS and precision devices with resolution up to 32-bit, in a range of packaging options for industrial, automotive, medical, communication, enterprise and personal electronics applications. The operations mentioned in above steps will be continued until the digital output is a valid one. DAC converts the received binary (digital) input, which is the output of counter, into an analog output. Eine höhere Eingangsspannung resultiert in einer längeren The working of a successive approximation ADC is as follows −. For n bit dual slop type of ADC, Vr = ( 2 n /N ) * Va Total time for conversion of input Va is expressed as follows: Total Time = (2 n + N)* T CLK. The true differential input and reference are particularly useful when making ratiometric measurements (ohms or bridge transducers). The output of all the comparators is like a thermometer: the higher the input value, more comparators have their outputs high from bottom to top. A reference voltage $V_{R}$ is applied across that entire network with respect to the ground. Which of the above statements are correct? Um eine exakte lineare Funktion zu erreichen, werden Kondensatoren mit Konstantstrom geladen. The working of a dual slope ADC is as follows − That's a pretty broad statement, but then again, so is the application space for such converters. Nach Abschluss der Integrationszeit wird eine Das Dual Slope ADC Dual slope ADCs often find their way into digital multimeters, audio applications and more. The flash type ADC is used in the applications where the conversion speed of analog input into digital data should be very high. The operations mentioned in above two steps will be continued as long as the control logic receives ‘1’ from the output of comparator. Understanding Integrating ADCs materias fi uba ar. All the outputs of comparators are connected as the inputs of priority encoder.This priority encoder produces a binary code (digital output), which is corresponding to the high priority input that has ‘1’. The logic diagram for the same is shown below. Lv 4. The following are the examples of Direct type ADCs −. A flash type ADC produces an equivalent digital output for a corresponding analog input in no time. The conversion time is maintained constant in successive approximation type ADC, and is proportional to the number of bits in the digitaloutput, unlike the counter and continuous type A/D converters. The counter type ADC mainly consists of 5 blocks: Clock signal generator, Counter, DAC, Comparator and Control logic. Basics of Integrated Circuits Applications. Introduction. Das Eingangssignal wird über einen Summierer an den Integrator angelegt. If the ADC performs the analog to digital conversion directly by utilizing the internally generated equivalent digital (binary) code for comparing with the analog input, then it is called as Direct type ADC. Der Meßzyklus teilt sich dabei in drei Phasen auf. The working of a 3-bit flash type ADC is as follows. 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