Floating Millivolt Reference for PTAT Current Generation in Subthreshold MOS LSIs

  • Ueno Ken
    Department of Electrical Engineering, Hokkaido University
  • Hirose Tetsuya
    Department of Electrical and Electronics Engineering, Kobe University
  • Asai Tetsuya
    Department of Electrical Engineering, Hokkaido University
  • Amemiya Yoshihito
    Department of Electrical Engineering, Hokkaido University

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Other Title
  • サブスレッショルドMOSFETを用いたPTAT電流生成のための微小フローティング電圧源回路
  • サブスレッショルド MOSFET オ モチイタ PTAT デンリュウ セイセイ ノ タメ ノ ビショウ フローティング デンアツ ゲン カイロ

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Abstract

A floating millivolt reference circuit to generate a PTAT current was developed by using MOSFETs operated in the subthreshold region. The circuit generates a floating voltage of 10 mV. The variations in the reference are ±2.7 % in a temperature range from -20 to 100°C. The total power consumption of the circuit was 1.3 μW.

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