Importance

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Abstract

An analog-to-digital (A/D) converter converts an analog input signal to a digital representation. The A/D converter has a voltage controlled current source, a Schmidt trigger, a counter, a capacitor, and a transistor switch. The analog input voltage controls the voltage controlled current source. The negative terminal of the current source is coupled to ground, and the positive terminal is coupled to the capacitor, the transistor, and the input of the Schmidt trigger. The other terminal of the capacitor and the drain of the transistor are coupled to a power supply voltage source. The output of the Schmidt Trigger is coupled to the input of the counter. The Reset clock is coupled to the reset terminals of the Schmidt trigger and the counter. The output of the counter represents the digital equivalent of the analog input.

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First Claim