This paper proposes a low power voltage reference generator in 0.18μm CMOS technology. The circuit presented here includes MOSFETs in sub threshold mode and uses the temperature dependence of threshold voltages and sub-threshold current of MOSFET to form a temperature-insensitive reference. An input supply voltage of 1.8 Volt is used for the circuit generating a total current of 1.33μA. By varying the device temperature over the range of -20°C to 100°C corresponding variation over the output voltage was found to lie in the range 397.8 to 400.2 mV. Thus a 0.6\% variation in voltage over the considered range of temperature is obtained. © (2013) Trans Tech Publications, Switzerland.

Sonal Singhal

Electrical Engineering

(SoE) School of Engineering

Rohit Singh

Singh A.K.

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Shiv Nadar University

Advanced Materials Research

This paper presents a temperature and supply compensated sub-threshold voltage reference generator which generates a reference voltage of 173 mV at supply voltage of 0.6 V and temperature @ 27 °C, has been designed in 45 nm CMOS technology. Variation of output voltage with temperature over a range of -25 to 85 °C is 172.88 to 173.25 mV which gives temperature coefficient of 19 ppm/°C at supply voltage of 0.6 V. The variation of output voltage with supply over a range of 0.6 to 1.0 V is 173.20 to 173.85 mV which gives line sensitivity of 0.93 \%/V at temperature 27 °C. The simulated PSRR value of the proposed circuit is approx -55 dB till 1 MHz. © 2014 IEEE.

9th International Conference on Industrial and Information Systems, ICIIS 2014

Feedback driven temperature and supply compensated sub-0.5 v reference generator

IET Circuits, Devices & Systems

Compact, very low voltage, temperature-independent reference circuit

2006 IEEE International Conference on IC Design and Technology

A Low-Voltage Process Corner Insensitive Subthreshold CMOS Voltage Reference Circuit