New compact and power efficient dynamically biased cascode mirrors and telescopic op-amps

Author

Ramirez-Angulo, Jaime ; Sawant, Milind S. ; Carvajal, Ramon G. ; Lopez-Martin, Antonio J.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM

fYear

2006

fDate

21-24 May 2006

Lastpage

2836

Abstract

A new dynamic biasing scheme for cascode transistors is introduced. It is applied to extend the input range of current mirrors and telescopic op-amps. The implementation of the proposed technique requires minimum additional circuitry and negligible power consumption and it does not increase the voltage requirements of the circuits. It is shown that besides extended signal range, improved gain accuracy is also achieved. Experimental results of a fabricated test chip in 0.5mum CMOS technology are presented that verify the proposed technique

Keywords

CMOS integrated circuits; cascade networks; current mirrors; low-power electronics; operational amplifiers; 0.5 micron; CMOS technology; cascode transistors; current mirrors; dynamic biasing scheme; power consumption; telescopic op-amps; Batteries; CMOS technology; Degradation; Impedance; Low voltage; Microwave integrated circuits; Mirrors; Operational amplifiers; Resistors; Virtual colonoscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on

Conference_Location

Island of Kos

Print_ISBN

0-7803-9389-9

Type

conf

DOI

10.1109/ISCAS.2006.1693214

Filename

1693214