Advantages of Digital Circuits

Topics: Digital, Analog circuits, Digital signal processing Pages: 3 (824 words) Published: June 1, 2012
Advantages of Digital Circuits





Digital circuits are circuits that use signals in digital form instead of analog forms. One distinctive feature of a digital signal is that it assumes discrete values, most of the time two values. A digital signal takes time to change from one value to another, and assumes intermediate values during transmission (Verma). Steady values are slightly inaccurate. Voltages within certain ranges are guaranteed to be interpreted as certain permitted values. In this technological era, digital circuits are more preferred in industries because of the many advantages they possess. Advantages range from good transmission due to low chances of being interrupted, to high efficiency.

Digital circuits also have disadvantages too but this assignment focuses more on advantages. Some of the notable disadvantages include use of more energy, hence more production of heat, they are more expensive due to high power consumption especially when in low qualities. This is just to mention a few.

Advantages of Digital Circuits

There are several advantages of digital circuits. These are the same features that make these circuits unique and efficient;

a) Signal Transmission Without Degradation

Degradation when a signal is being transmitted happens due to noise. A good example is with an audio signal; this kind of transmission happens in sequences of 0s and 1s. As far as these 0s and 1s are readable, or have not been tempered with to become unreadable, then signals will be transmitted fully without any interruption (Verma). Therefore, so many signals can be transmitted for a long time successfully.

b) Easy Representation of a Signal (Signal resolution)

When there is that need to represent a digital signal in a better form, all that has to be done is to increase the number of circuits, since all signal types are handled by...

References: Lee, F. S., A. P. Chandrakasan, "A 2.5 nJ/bit 0.65 V Pulsed UWB Receiver in 90 nm CMOS," IEEE Journal of Solid-State Circuits, vol. 42, no. 12, pp. 2851-2859, Dec. 2007. [PDF]
Verma, N., A. P. Chandrakasan, "An Ultra Low Energy 12-bit Rate-Resolution Scalable SAR ADC for Wireless Sensor Nodes", IEEE Journal of Solid-State Circuits, vol. 42, no. 6, pp. 1196-1205, June 2007. [PDF]
Daly, D. C., A. P. Chandrakasan, "An Energy-Efficient OOK Transceiver for Wireless Sensor Networks," IEEE Journal of Solid-State Circuits, vol. 42, no. 5, pp. 1003-1011, May 2007. [PDF]
Ginsburg, B. P., A. P. Chandrakasan, "500-MS/s 5-bit ADC in 65-nm CMOS With Split Capacitor Array DAC," IEEE Journal of Solid-State Circuits, vol. 42, no. 4, pp. 739-747, April 2007. [PDF]
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