Integrate and dump based VGA with an embedded programmable analog FIR filter

Author

Omar, Mohammed ; Emira, Ahmed ; Dessouky, Mohamed

Author_Institution

Ain Shams Univ., Cairo, Egypt

fYear

2010

fDate

20-23 June 2010

Firstpage

77

Lastpage

80

Abstract

This paper presents a novel VGA (Variable Gain Amplifier) with an embedded analog FIR (Finite Impulse Response) filter architecture. The idea is based on a modified version of the integrate and dump circuit. The proposed modifications allow altering the frequency response of the circuit without significantly increasing the circuit complexity along with maintaining acceptable gain control range, noise and linearity. The proposed circuit was designed using 0.13 μm CMOS technology. It consumes 105 μA from 1.2 V supply with an input referred noise of 27.15 nV/√(Hz).

Keywords

CMOS analogue integrated circuits; FIR filters; amplifiers; circuit complexity; CMOS technology; circuit complexity; current 105 muA; dump circuit; embedded programmable analog FIR filter; frequency response; integrate circuit; size 0.13 mum; variable gain amplifier; voltage 1.2 V; Approximation methods; Bandwidth; CMOS integrated circuits; Frequency response; Gain; Receivers; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

NEWCAS Conference (NEWCAS), 2010 8th IEEE International

Conference_Location

Montreal, QC

Print_ISBN

978-1-4244-6806-5

Electronic_ISBN

978-1-4244-6804-1

Type

conf

DOI

10.1109/NEWCAS.2010.5603928

Filename

5603928