Abstract
The double gate junctionless transistor (DG-JLT) has become the most promising device in sub nano-meter regime. DGJLT based circuits have improved performance and simpler fabrication than their inversion mode counterparts. This paper demonstrates the design of different analog and digital circuits using DGJLT. Amplifiers and inverters are the basic building block of electronic ICs. A MOS amplifier converts the variation of the gate to source voltage to a small current under transconductance and hence, the output voltage. A single-stage amplifier and differential amplifier have been designed with junctionless-double-gate (JL-DG) MOSFET. Trans-conductance, output voltage, and gain have been investigated using ATLAS 2D device simulator. The inverter is the primary logic gate that can be used to verify the device’s response in digital applications. Further, CMOS inverter have been designed using JL-DG MOSFET, and its performance parameters such as switching voltage, noise margin, and logic delay have been analyzed. A switching voltage of 0.43 V, noise margin of 0.265 V, and a delay of 19.18 psec have been obtained for the basic cell. CMOS inverter using JL-DG MOSFET at 20 nm channel length have prompted better performance results. Thus, The JL-DG MOSFET has a bright future in low-power analog and digital applications.
Highlights
Continuous scaling of MOSFET is being done to achieve high packing density with higher speed
We investigate the analog circuit applications of JL-DG MOSFET
The results reveal that the proposed common source amplifier using JL-DG MOSFET has a higher drain current, output voltage, and voltage gain
Summary
Continuous scaling of MOSFET is being done to achieve high packing density with higher speed. Scaling has reduced the device size and power consumption, below 20nm it results in fabrication complexity and reduced gate control over channel [1] Various alternative devices such as SOI, FinFET, TFET, and Junctionless transistors are being used to improve the device performance [2–3]. To assess the utility and performance of this device in analog circuit applications, three different circuits’ common source amplifier, source follower amplifier, and differential amplifier, are designed. The common source amplifier is one of the most widely used circuits of all the FET circuit configurations It provides current and voltage gain along with satisfactory input and output impedance. Known as common drain amplifiers, are one of the three basic single-stage amplifier configurations This amplifier circuit provides high input impedance, low output impedance, unity voltage gain, and high bandwidth.
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