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Sub-threshold level converter with internal supply feedback for multi-voltage applications

Sub-threshold level converter with internal supply feedback for multi-voltage applications

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A new sub-threshold level shifter for ultra-low voltage digital systems is presented in this study. The self-controlled supply feedback loop is quintessential for this circuit. Measured results from a test chip show that it is capable of realising a voltage conversion from a voltage as low as 0.1–1.2 V reliably, while maintaining an operational frequency of 25.2 kHz, when implemented in a 65-nm process technology. In addition, it also has ample process variation tolerance and low static power consumption. To support multi-voltage digital systems, the proposed level converter can up-convert an input at any voltage with this range to normal voltage domains.

References

    1. 1)
    2. 2)
      • A. Wang , B.H. Calhoun , A.P. Chandrakasan . (2006)
        2. Wang, A., Calhoun, B.H., Chandrakasan, A.P.: ‘Sub-threshold design for ultra low-power systems’ (Springer, New York, 2006).
        .
    3. 3)
      • B. Zhai , L. Nazhandali , J. Olson .
        3. Zhai, B., Nazhandali, L., Olson, J., et al: ‘A 2.60 pJ/inst subthreshold sensor processor for optimal energy efficiency’. Dig. Symp. VLSI Circuits, 2006, pp. 154155.
        . Dig. Symp. VLSI Circuits , 154 - 155
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
      • J. Zhou , C. Wang , X. Liu .
        10. Zhou, J., Wang, C., Liu, X., et al: ‘A fast and energy-efficient level shifter with wide shifting range from sub-threshold up to I/O voltage’. IEEE A-SSCC conf., 2013, pp. 137140.
        . IEEE A-SSCC conf. , 137 - 140
    11. 11)
    12. 12)
      • A. Hasanbegovic , S. Aunet .
        12. Hasanbegovic, A., Aunet, S.: ‘Low-power subthreshold to above threshold level shifter in 90 nm process’. Proc. NORCHIP Conf., Trondheim, Norway, 2009, pp. 14.
        . Proc. NORCHIP Conf. , 1 - 4
    13. 13)
      • H. Shao , C. Tsui .
        13. Shao, H., Tsui, C.: ‘A robust, input voltage adaptive and low energy consumption level converter for sub- threshold logic’. Proc. 33rd ESSCIRC, 2007, pp. 312315.
        . Proc. 33rd ESSCIRC , 312 - 315
    14. 14)
    15. 15)
    16. 16)
      • R. Matsuzuka , T. Hirose , Y. Shizuku .
        16. Matsuzuka, R., Hirose, T., Shizuku, Y., et al: ‘A 0.19-V minimum input low energy level shifter for extremely low-voltage VLSIs’. 2015 IEEE Int. Symp. on Circuits and Systems (ISCAS), May 2015, pp. 29482951.
        . 2015 IEEE Int. Symp. on Circuits and Systems (ISCAS) , 2948 - 2951
    17. 17)
    18. 18)
      • S.R. Hosseini , M. Saberi , R. Lotfi .
        18. Hosseini, S.R., Saberi, M., Lotfi, R.: ‘An energy-efficient level shifter for low-power applications’. 2015 IEEE Int. Symp. on Circuits and Systems (ISCAS), May 2015, pp. 22412244.
        . 2015 IEEE Int. Symp. on Circuits and Systems (ISCAS) , 2241 - 2244
    19. 19)
      • A. Chavan , E. MacDonald .
        19. Chavan, A., MacDonald, E.: ‘Ultra low voltage level shifters to interface sub and super threshold reconfigurable logic cells’. Proc. IEEE Aerospace Conf., 2008, pp. 16.
        . Proc. IEEE Aerospace Conf. , 1 - 6
    20. 20)
    21. 21)
      • B. Mohammadi , J.N. Rodrigues .
        21. Mohammadi, B., Rodrigues, J.N.: ‘A 65 nm single stage 28 fJ/cycle 0.12 to 1.2 V level-shifter’. IEEE ISCAS Conf., 2014, pp. 990993.
        . IEEE ISCAS Conf. , 990 - 993
    22. 22)
      • E. Maghsoudloo , M. Rezaei , M. Sawan .
        22. Maghsoudloo, E., Rezaei, M., Sawan, M.: ‘A power-efficient wide-range signal level-shifter’. NEWCAS Conf., 2015, pp. 14.
        . NEWCAS Conf. , 1 - 4
    23. 23)
    24. 24)
    25. 25)
    26. 26)
      • S.C. Jocke , J.F. Bolus , S.N. Wooters .
        26. Jocke, S.C., Bolus, J.F., Wooters, S.N., et al: ‘A 2.6-uw sub-threshold mixed-signal ECG SOC’. Proc. Symp. VLSI Circuits, June 2009, pp. 6061.
        . Proc. Symp. VLSI Circuits , 60 - 61
    27. 27)
    28. 28)
    29. 29)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cds.2015.0359
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