A realization of low-distortion CMOS transconductance amplifier

被引：16

作者：

Morozov, DV ^{[1
]}

Korotkov, AS ^{[1
]}

机构：

[1] St Petersburg State Tech Univ, Dept Elect & Telecommun Engn, St Petersburg 195251, Russia

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 2001年 / 48卷 / 09期

关键词：

compensation technique; harmonic distortion; transconductor; triode region;

D O I：

10.1109/81.948443

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new CMOS transconductance amplifier with low-harmonic distortion is proposed. The used technique is based on the parallel connection of two amplifiers. The first transconductor is working in the triode region, the other one is in the saturation. Compared to the known method, the realization of the discussed circuit provides a good value of G(m)/I parameter and lower power consumption. An estimation indicates that 15% power saving can be achieved. A special current-biasing block and large size MOS transistors will not be required. The results of the theoretical analysis as well as the results of the computer simulations are presented.

引用

页码：1138 / 1141

页数：4

共 12 条

[1] LOW-VOLTAGE CMOS TRANSCONDUCTANCE CELL-BASED ON PARALLEL OPERATION OF TRIODE AND SATURATION TRANSCONDUCTORS [J].

COBAN, AL ;

ALLEN, PE .

ELECTRONICS LETTERS, 1994, 30 (14) :1124-1126

[2] High-frequency two-input CMOS OTA for continuous-time filter applications [J].

Glinianowicz, J ;

Jakusz, J ;

Szczepanski, S ;

Sun, Y .

IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS, 2000, 147 (01) :13-18

[3]

GREER NPJ, 1991, P I ELECT ENG G, V138, P551

[4] A MOSFET-only continuous-time bandpass filter [J].

Huang, QT .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1997, 32 (02) :147-158

[5] LOW-VOLTAGE CMOS TRANSDUCTANCE CELL-BASED ON PARALLEL OPERATION OF TRIODE AND SATURATION TRANSCONDUCTORS - COMMENT [J].

KLUMPERINK, EAM ;

MENSINK, CHJ ;

STROET, PM .

ELECTRONICS LETTERS, 1994, 30 (22) :1824-1825

[6]

KRUMMENACHER F, 1989, P IEEE INT S CIRC SY, P100

[7] A current-mode testable design of operational transconductance amplifier-capacitor filters [J].

Lee, KJ ;

Wang, WC ;

Huang, KS .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1999, 46 (04) :401-413

[8] NEW CMOS TRIODE TRANSCONDUCTOR [J].

LEE, SO ;

PARK, SB ;

LEE, KR .

ELECTRONICS LETTERS, 1994, 30 (12) :946-948

[9] Tunable low-distortion BiCMOS transconductance amplifiers [J].

Mahattanakul, J ;

Toumazou, C .

ELECTRONICS LETTERS, 1998, 34 (02) :175-176

[10] A 2-MU-M CMOS 5TH-ORDER LOW-PASS CONTINUOUS-TIME FILTER FOR VIDEO-FREQUENCY APPLICATIONS [J].

STEFANELLI, B ;

KAISER, A .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1993, 28 (07) :713-718

← 1 2 →