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Video s3
    Details
    Poster
    Presenter(s)
    Durgham Al-Shebanee Headshot
    Affiliation
    Affiliation
    Insitute of Integrated Analog Circuits and RF Systems, RWTH Aachen University
    Country
    Author(s)
    Affiliation
    Affiliation
    Insitute of Integrated Analog Circuits and RF Systems, RWTH Aachen University
    Display Name
    Ralf Wunderlich
    Affiliation
    Affiliation
    RWTH Aachen University
    Display Name
    Stefan Heinen
    Affiliation
    Affiliation
    RWTH Aachen University
    Abstract

    The generation of a voltage reference signal under low power conditions is complicated due to the massive influence of temperature variations. In this work, All-MOSFET resistorless low power solutions are presented in order to obtain a temperature independent voltage reference. The design is based on the generation of two supply independent signals with Proportional To Absolute Temperature (PTAT) slope and Complementary To Absolute Temperature (CTAT) slope. Furthermore, a biasing circuit with low reference current is used in order to control the power consumption over a wide temperature range. The circuit design and layout has been done using 0.13 µm technology. The post-layout simulation results show that the circuit generates a voltage reference signal Vref of 0.961 V within a supply voltage VDD range of 1.2 V to 3 V giving a line sensitivity of 1.02 %/V. The total power consumption is 114 nW at VDD of 1.2 V and temperature of 27 °C. The Temperature Coefficient (TC) is 125 ppm/°C in a temperature range of 0 °C to 100 °C. The Power Supply Rejection Ratio PSRR is −41.94 dB at 1 Hz, −41.76 dB at 10 Hz, and −35.13 dB at 100 Hz.