Title :
A 23pW, 780ppm/°C resistor-less current reference using subthreshold MOSFETs
Author :
Myungjoon Choi ; Inhee Lee ; Tae-Kwang Jang ; Blaauw, D. ; Sylvester, Dennis
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
This paper proposes a MOSFET-only, 20pA, 780ppm/°C current reference that consumes 23pW. The ultra-low power circuit exploits subthreshold-biased MOSFETs and a complementary-to-absolute temperature (CTAT) gate voltage to compensate for temperature dependency. The design shows low supply voltage sensitivity of 0.58%/V and a load sensitivity of 0.25%/V.
Keywords :
MOSFET; compensation; low-power electronics; reference circuits; CTAT gate voltage; complementary-to-absolute temperature gate voltage; current 20 pA; load sensitivity; low supply voltage sensitivity; power 23 pW; resistorless current reference; subthreshold-biased MOSFET; temperature dependency compensation; ultralow power circuit; Current measurement; Generators; Sensitivity; Temperature dependence; Temperature measurement; Temperature sensors; Transistors;
Conference_Titel :
European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014 - 40th
Conference_Location :
Venice Lido
Print_ISBN :
978-1-4799-5694-4
DOI :
10.1109/ESSCIRC.2014.6942036
