TYPES OF ANALOG-TO-DIGITAL CONVERTERS


Posted on Feb 7, 2014

Analog-to-digital converters are classified into one-step architectures, such as: flash, folding and interpolative topologies, and multi-step architectures, such as: Successive approximation and pipeline topologies. The flash architecture is potentially the fastest analog-to-digital converter, because of the parallelism it employs. However, this p


TYPES OF ANALOG-TO-DIGITAL CONVERTERS
Click here to download the full size of the above Circuit.

arallelism puts a practical limit on the resolution of the flash analog-to-digital converter. For an n-bit analog-to-digital converter, the flash architecture employs (2 n 1) comparators and decoding logic. A resistive ladder consisting of 2 n equal resistors divides the reference voltage into 2 n equally spaced voltages as shown in Figure 7. 15 is logic 0. The decoding logic transfers the thermometer code which has (2 n 1) bits into a binary signal which has n bits. Table 7. 1 shows the mapping between the thermometer code and the binary coded signal when n=3.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    8 Channel software controlled fanbus with PWM
    mini inverter 10w 30w by transistor d313
    Water Activated Alarm
    MPF102 FET Preamplifier
    MEM 800
    Practical sound level monitor circuit diagram
    SF04E emission circuit diagram composed SF04B
    The PC CPU overheating language caution circuit diagram
    High-quality low-noise preamplifier
    Agricultural harvester warehouse full schematic reminder



    Top