Title :
Design of Resistorless Low Temperature Coefficient Band Gap Reference Bias Circuit
Author :
Gupte, Soniya ; Zode, Pradnya
Author_Institution :
Dept. of Electron., Yeshwantrao Chavan Coll. of Eng., Nagpur, India
Abstract :
This paper describes a new band-gap reference (BGR) without resistors that can be fabricated in a 0.35μm technology. The differential amplifier is used to reduce the current mirror errors dependent on the supply voltage and temperature, so as to produce a temperature insensitive gain applied to the proportional to absolute temperature (PTAT) term in the reference. The simulation result indicates that the proposed BGR circuit has low temperature coefficient (TC) Results demonstrate that the bias voltage 1.24V has shown only 8 mV variation over the temperature range 0 to 110°C. The supply voltage used is 2.72V.
Keywords :
current mirrors; differential amplifiers; energy gap; BGR bias circuit; PTAT term; current mirror error reduction; differential amplifier; proportional-to-absolute temperature term; resistorless low-temperature coefficient band gap reference bias circuit; size 0.35 mum; temperature 0 degC to 110 degC; voltage 1.24 V; voltage 2.72 V; voltage 8 mV; Logic gates; MOSFETs; Photonic band gap; Resistors; Temperature dependence; Temperature distribution; BGR; reference circuits; resistor less; start up;
Conference_Titel :
Communication Systems and Network Technologies (CSNT), 2011 International Conference on
Conference_Location :
Katra, Jammu
Print_ISBN :
978-1-4577-0543-4
Electronic_ISBN :
978-0-7695-4437-3
DOI :
10.1109/CSNT.2011.87
