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A CMOS Band Gap Reference Generator for Low Voltage Amplification with the Application of a (-Ve) Feedback Loop

International Journal of Computer Applications
© 2012 by IJCA Journal
Volume 50 - Number 7
Year of Publication: 2012
Niranjan Bhattacharyya
Tanima Ghosh

Niranjan Bhattacharyya and Tanima Ghosh. Article: A CMOS Band Gap Reference Generator for Low Voltage Amplification with the Application of a (-Ve) Feedback Loop. International Journal of Computer Applications 50(7):27-31, July 2012. Full text available. BibTeX

	author = {Niranjan Bhattacharyya and Tanima Ghosh},
	title = {Article: A CMOS Band Gap Reference Generator for Low Voltage Amplification with the Application of a (-Ve) Feedback Loop},
	journal = {International Journal of Computer Applications},
	year = {2012},
	volume = {50},
	number = {7},
	pages = {27-31},
	month = {July},
	note = {Full text available}


We all know that the basic building block of any communication system is the reference voltage generator. The objective of reference generation is to establish a DC voltage or current that is independent of the supply and process and has a well-defined behavior with temperature. Band Gap Reference (BGR) is one of the most popular reference generators. In the conventional BGR circuit, the reference voltage Vref is the summation of thermal voltage VT and the base to emitter voltage of a transistor (Vf). The thermal voltage VT has a (+Ve) temperature coefficient (TC), whereas Vf has a (-Ve) temperature coefficient (TC). So BGR is independent of temperature . The traditional BGR circuit generates a reference voltage about 1. 12V. So this circuit limits a low supply-voltage operation below 1v. In this paper a new BGR circuit in 0. 25?m iCMOS technology, and a new BGR in BiCMOS technology is proposed which are containing a extra (-ve) feedback loop to get very low reference voltage as well as to stabilize this reference voltage even when it is operating below 1v supply. The TC of this reference generator is getting even zero by applying a (-ve) feedback loop. For a temperature variation between -400 C and 1000 C,the BGR of CMOS technology, and for a temperature variation between -400 C and 600 C, the BGR of BiCMOS technology, the produced reference voltages are absolutely independent of temperature variation together with the capability of operating at very low supply voltage (less than 1V).


  • Novel CMOS gap Ref circuit with Improved High-Order Temperature Compensation by Koudounus etc. ,University of Cyprus,A IEEE Journal of 2010.
  • "A high precision high PSRR band gap reference with thermal hysteresis protection by Yang Yitang etc, A journal of Chinese Institute of Electronics, Sept 2010
  • Design of Band Gap Reference and Current reference Generator with Low supply voltage by Dong-OK Han etc. , IEEE journal of 2008.
  • 'Low-Voltage Band Gap Reference Design Utilizing Schottky Diodes' by David L. Butler and R. Jacob Baker. An IEEE journal of 2005.
  • 'Novel Start-Up Circuit With Enhanced Power-Up Characteristic For Band Gap references' by Tuan Vu Cao, etc An IEEE journal of 2008
  • 'A Sub-1-V Linear CMOS band Gap Voltage Reference' by Yang Welli,Wang Xichuan, Caj Jun' A journal of Microelectronic Research & Dev Centre,Shanghai U.
  • 'Curvature Compensated BiCMOS Band Gap With 1V Supply voltage' by P. Malcovati etc. A journal of Integrated Microsystems Laboratory, University of Pavia