A Reprogrammable Fuse with EEcells for trimming a Temperature Sensor

A reprogrammable fuse with EEPROM cells is designed in a 0.18μm CMOS EEPROM process. The proposed fuse provides a mechanism for repeatedly alter the stored data by allowing reprogramming the state of the fuse. This circuit is used for trimming a Temperature Sensor in order to achieve a low temperature error. The process corners variation and Monte Carlo simulations present a ±2°C (3σ) inaccuracy of the trimmed sensor at 3V for temperatures from - 20°C to 125°C.