Design Automation of 5-T OTA using gm/ID methodology

Design of any electronic system without having analog block is impractical as the real-world signals are analog in nature. Operational transconductance amplifiers (OTA) are one of the basic building blocks analog design and its design using the square law method requires intuitive experience and a lot of time. In this paper, a formal and self-regulating method has been used to design a basic building block (OTA). This design uses transconductance efficiency $(g_{m}/I_{D})$ methodology and automated through the Python environment. Automation is done without using the circuit simulators in the loop and the simulation results of the synthesized design are verified in Cadence Spectre simulator using UMC 180nm CMOS technology.