Title :
CMOS current reference with temperature compensation
Author :
Jahagirdar, Vedavyas ; Hirur, Rakesh
Author_Institution :
B.V.Bhoomarradi Coll. of Eng. & Technol., Hubli, India
Abstract :
Current reference is an essential building block in all analog-mixed signal integrated circuits. Basic current references are sensitive to temperature variations, and may vary up to ±30% for a temperature range -30 °C to 135°C. This paper, suggests a technique of combining two current reference models with complementary temperature characteristics, to improve stability of the reference current to 1.14% for the full range of temperature variation; and a dynamic variation which is below 57ppm/ °C. The circuit is designed for a current reference of 5μA for 180nm CMOS technology and Physical design (Layout) is simulated for a temperature range of -30°C to 135 °C across process corners.
Keywords :
CMOS integrated circuits; compensation; mixed analogue-digital integrated circuits; reference circuits; CMOS current reference; analog-mixed signal integrated circuits; complementary temperature characteristics; current 5 muA; dynamic variation; physical design layout; size 180 nm; temperature -30 degC to 135 degC; temperature compensation; temperature variations; CMOS integrated circuits; CMOS technology; CTAT; Current Reference; PTAT; Process variation; Temperature Compensation;
Conference_Titel :
Electrical, Computer and Communication Technologies (ICECCT), 2015 IEEE International Conference on
Print_ISBN :
978-1-4799-6084-2
DOI :
10.1109/ICECCT.2015.7226144
