Interning at SSPL(Solid State Physics Laboratory), DRDO was an enriching experience, particularly due to my involvement in a project centered around the application of operational amplifier, specifically the iconic OP-AMP 741. My primary task revolved around developing a temperature monitoring sensor employing the OP-AMP 741 and instrumentation amplifier.Using Cadence OrCad software, I embarked on simulating various configurations and setups to determine the most optimal design. This phase involved extensive trial and error, fine-tuning parameters to achieve the desired results. Simulating allowed for a comprehensive understanding of the circuit's behavior under different conditions, enabling me to refine the design iteratively.