A novel 2-terminal zener voltage reference

Abstract

In this paper, we present a novel 2-terminal zener voltage reference of 0.23V which is also commonly known as a shunt regulator. The circuit realizes the use of sub-threshold technology of MOSFET and it is simulated with Chartered O.lS"m CMOS process. Simulation results explicitly show that a stable 2-terminal zener voltage reference of 0.23V is generated with a temperature coefficient of 3.7ppm/oC across a temperature range of 0 to 150°C. Furthermore, the minimum operating current is 10JLA which yields a low power consumption of 2.3"W. The line regulation is 22.SmVN. This circuit only consumes a silicon area of 0.0009 mm 1 • Being 2-terminal, this simple design can be used to provide a very low and stable voltage difference between any two nodes in a circuit.