analog to digital converter

Posted on Feb 6, 2014

An analog to digital converter converts an analog input voltage into a digital value. This is a circuit for shows the analog to digital converter. This circuit is using microcontroller ATmega8 for control the operation. This is the figure of the circuit. The resolution of the converter indicates the number of discrete values it can produce. It is

analog to digital converter
Click here to download the full size of the above Circuit.

usually expressed in bits. For example, an ADC that encodes an analog input to one of 256 discrete values has a resolution of eight bits, 28 = 256. Most ADCs are linear, which means that they are designed to produce an output value that is a linear function of, i. e. proportional to, the input. In this circuit, Atmega8 has 6 AD-converters which have a resolution of 10 bits so it has 210 = 1024 discrete values. In his example a potentiometer is connected to the portC. 0 of the Mega8 and a LCD module of 20x4 characters is connected to port D. The LCD module displays the values that are measured on the ADC port. The values are presented on the display as discrete values (0 to 1023), the percentage (0 to 100%) of the values and in a bargraph display.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Video amplifier provides digital gain control
    Stopwatch 0-99 seconds (MC14518B)
    How to design A class amplifier
    Magic Light Capacitance Sensor using an Arduino
    synced using infrared phototransistors
    differential to ttl convertor
    servo timer
    economy radar detector
    IR Music Transmitter and Reciever
    Low Frequency Antennas
    Long-range high-frequency transistor FM transmitter circuit diagram
    Overload protection circuit diagram of 25 ohm speaker
    Thermocouple cold junction compensator AD596 597 a circuit diagram of Temperature Monitor