Avireni Bhargav* and Jitendra Kumar Saini Pages 133 - 141 ( 9 )
This paper brings in a new design, namely, voltage mode differentiator with an active element, Carbon Nanotube Field Effect Transistors Voltage Difference Transconductance Amplifier (CNVDTA). The circuit thus proposed needs one Carbon Nanotube Field Effect Transistors Voltage Difference Transconductance Amplifier (CNVDTA) element and a single capacitor. While fabricating IC’s in VLSI design, the proposed circuit proves more adaptable with the anticipated results.
Methods/Results: The proposed CNVDTA based voltage mode differentiator in CNFET technology has been simulated at 32 nm at a voltage supply of ±0.9 V using the Cadence Virtuoso CAD tool. It is also reported that the proposed circuit would function with ±0.9 V supply voltage and it also takes care of the bias current of the order of 150 µA. Further, on the part of the transconductance (gm), it is electronically tunable with the help of bias current.
Conclusion: The CNVDTA based differentiator has been found to be very useful in the trigger circuit of CRO’s, wave shaping circuits, power control circuits etc. It is also found useful in detecting the high-frequency components in the input signals.
Carbon nanotube field effect transistors, differentiator, carbon nanotube field effect transistors voltage difference transconductance ampliﬁer, CNVDTA, voltage-mode, low voltage.
Dept. of Electronics and Communication Engineering, Birla Institute of Technology, BIT Mesra, Jaipur Center, Dept. of Electronics and Communication Engineering, Birla Institute of Technology, BIT Mesra, Jaipur Center