The Programmable Gain Amplifier (PGA) for sensor applications is meticulously engineered to enhance signal strength and fidelity across various sensor platforms. Designed to cater to a broad spectrum of sensor systems, it provides adjustable gain settings vital for maximizing performance in diverse operational environments. With utilization of the SMIC180nm process node, this PGA ensures robust operational efficiency and precise signal amplification necessary for accurate sensor readings. Moreover, it plays a significant role in facilitating seamless integration with existing sensor frameworks, making it invaluable in industries relying heavily on precise data acquisition.