论文信息 - Pico Watt sub-threshold CMOS voltage reference circuit

Pico Watt sub-threshold CMOS voltage reference circuit

This paper presents a simple Pico Watt reference circuit with the output voltage of 263.1 mV using sub-threshold operation of MOSFETs at supply voltage of 0.7V. Proposed circuit consumes merely 400 pW of power at room temperature and it is designed using standard TSMC 0.18μm technology. Reference voltage is provided by subtracting the 0◦C threshold voltage of MOSFETs. The simulation results show voltage variation of 0.32 mV/V for supply voltage from 0.7 V to 2.5 V and about 0.4 mV of temperature variation in the range of −40◦C to 120◦C. The active area of the proposed circuit is 500μm2. Our device would be suitable for use in passive RFIDs, WSN applications and all other power-aware SOCs.

Jafar Sobhi | Ziaddin Daei Koozehkanani | Ali Sahafi

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