Ultra low power beta multiplier-based current reference circuit

作者：Chouhan Shailesh Singh^*; Halonen Kari

来源：Analog Integrated Circuits and Signal Processing, 2017, 93(3): 523-529.

DOI：10.1007/s10470-017-1057-5

• Biasing network
• Ultra low power
• Beta multiplier circuit
• Reference circuit
• Reference current generation

This work presents a current reference circuit fabricated in a standard 0.18 mu m CMOS technology. The reference current is obtained by applying thermal compensation voltage in the conventional self-biased or beta multiplier-based current reference circuit. Eight prototypes of the proposed architecture were measured which have resulted into the mean reference current of 26.1 nA with the temperature coefficient of 202.1 ppm/A degrees C. These measurements were performed in the temperature range of - 40 to + 85 A degrees C. The circuit is capable of working over the supply voltage range of 1-2 V with the measured mean line sensitivity of 2.18%/V. The maximum measured power dissipation of the circuit is 104 nW at 2 V.

• 出版日期2017-12