Accurate Constant Transconductance Generation without Off-Chip Components

Author

Mondal, I. ; Krishnapura, N.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Madras, Chennai, India

fYear

2015

fDate

3-7 Jan. 2015

Firstpage

249

Lastpage

253

Abstract

A process, voltage, and temperature invariant transconductance generation technique without the use of any off-chip components is proposed. It generates transconductance by tracking an MOSFET in linear region, whose conductance is precisely controlled by negative feedback using constant voltage and current references. Simulation results of a prototype transconductor in 0.13μm CMOS technology show an inaccuracy of less than 0.5% for 120°C variation of temperature and a deviation of ±4 % with mismatch.

Keywords

CMOS integrated circuits; MOSFET; feedback; CMOS technology; MOSFET; constant current reference; constant voltage reference; negative feedback control; off-chip component; process voltage and temperature invariant; size 0.13 mum; temperature 120 degC; transconductance generation technique; MOSFET; Negative feedback; Resistance; Resistors; System-on-chip; Transconductance; Mismatch; Off-chip; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design (VLSID), 2015 28th International Conference on

Conference_Location

Bangalore

ISSN

1063-9667

Type

conf

DOI

10.1109/VLSID.2015.48

Filename

7031741

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3437368