A CMOS Fish Freshness to Continuous-Time Incremental Sigma-Delta Modulator for Monitoring Fish Freshness in Fish Markets

In this paper, a CMOS fish freshness to continuous-time incremental sigma-delta modulator for monitoring fish freshness in fish market is proposed for Internet of Things (IoT) techniques. The chip is fabricated in the TSMC 0.35 μm 2P4M CMOS technology with 3.0 V power supply. Furthermore, by using MATLAB and SPICE programs, all the performance and functions of the proposed fish freshness to continuous-time incremental sigma-delta modulator have been correctly verified and proven in simulations. The chip size is 1.26 X 2.69 mm². The proposed chip is aimed to be applied in detecting fish freshness in fish markets.