Low-Voltage Current-Tmode Realization of Digital Logic Gates Using CMOS

The MOS transistors (M 23 to M 24) constitute a current mirror for subtracting the drain currents of the MOS transistors M 3 and M 10. The circuit consists of 2 wire loop (M27 - M30). (6) VGS = Vt + (IDS / K) 1/2 (7) The drain-source current (IDS) of the MOS transistor operating in the saturation region can be expressed as follows: IDS = K (VGS - Vt) ) K = 0.5. μ 0 COX (W / L) is the transconductance parameter of the transistor, μ 0 is the electron mobility, COX is the gate oxide capacitance per unit area, W / L is the aspect ratio of the transistor, VGS is the gate-source voltage, Vt is the MOS Threshold voltage of transistor.

Transistor switches are used in a variety of applications, such as connecting high current or high voltage devices such as motors, relays or lamps to low voltage digital ICs or logic gates such as AND gates or OR gates. Here, the output of the digital logic gate is only +5 V, but the device to be controlled may require a power supply of 12 volts or even 24 volts. Or, for loads such as DC motors, a series of pulses (pulse width modulation) may be required to control the speed. Through transistor switching, this can be done faster and easier than with conventional mechanical switches.

This paper implements dual rail logic circuit design technology of CMOS differential cascade voltage switching circuit. This CVSL gate helps to improve functional efficiency and low power consumption. We have studied static and dynamic CMOS differential CVSL circuits using cadence-gpdk 90 nm technology

On a classical computer, convert arbitrary data to 0 and 1, so-called bits. In fact, to handle high and low voltages, you can manipulate the data and calculate the result via a series of gates called logic gates. Logic gates such as AND, OR, NOT, XOR, etc. can be arranged in various ways to process bits and generate output. It can do simple operations like complex encryption. Performing operations instead of using mechanical switches by physically implementing logic gates using transistors is now a matter of days that depends on the properties of silicon semiconductors.