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Design and Analysis of Digitally Tunable Transconductance Amplifier (DTTA) Using CNTFETs
Shailendra Kumar Tripathi1, Sarfraz Hussain2, Raj Kumar3
1Department of Physics and Material Science, Jaypee University, Anoopshahr, India.
Thescientificworldjournal
|May 31, 2024
Summary
This study introduces a digitally tunable transconductance amplifier (DTTA) using carbon nanotube-FETs (CNTFETs). This innovative design offers adjustable amplifier settings without hardware changes, leveraging CNTFETs unique electrical properties.
Area of Science:
- Electronics
- Materials Science
- Semiconductor Devices
Background:
- Carbon nanotube-FETs (CNTFETs) offer superior electrical properties and CMOS compatibility.
- Traditional amplifiers often require hardware modifications for parameter tuning.
Purpose of the Study:
- To design and analyze a digitally tunable transconductance amplifier (DTTA) utilizing CNTFETs.
- To demonstrate a versatile method for adjusting amplifier characteristics without altering the hardware.
Main Methods:
- Utilized advanced CNTFET modeling techniques for accurate circuit simulations.
- Implemented the DTTA circuit using a 32nm CNTFET model.
- Verified circuit performance and functionality using HSPICE simulations.
Main Results:
- Successfully designed a CNTFET-based DTTA with digitally tunable transconductance.
- Demonstrated the amplifier's ability to adjust settings without hardware redesign.
- Validated the simulation results through comprehensive analysis.
Conclusions:
- CNTFETs are suitable for developing advanced analog circuits like DTTAs.
- The proposed DTTA design provides a flexible and efficient solution for tunable amplification.
- This work contributes to the advancement of CNTFET-based analog circuit design.
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