IMPLEMENTATION OF BROKAW BANDGAP REFERENCE

Abstract: In this study, a high-performance CMOS band-gap reference (BGR) is designed. The suggested circuit uses a current mode architecture that has been specially designed for low supply voltage situations. The main component of the circuit uses the Brokaw BGR architecture, which only uses first-order temperature compensation technology and a three-stage operational amplifier to achieve high PSRR and a low temperature coefficient. The circuit uses Chartered 0.18-m CMOS technology and operates at 1.8 volts, simulation results are provided. According to the simulation's findings, the temperature coefficient is 9 ppm/K for the -40 to 125°C temperature range, and the reference voltage fluctuates by no more than 0.067 mV when the power voltage shifts from 1.44 to 2.16V. The PSRR is 108.5dB at 10 KHz with the power consumption of only 0.355mW as well.

Keywords: PMOS, NMOS, Low power applications, Constant Voltage, RLC Circuits, PSRR, Stability Analysis, Noise Parameters.