A sub 1-V constant Gm-C switched-capacitor current source

被引：12

作者：

Gregoire, B. Robert ^{[1
]}

Moon, Un-Ku ^{[1
]}

机构：

[1] Oregon State Univ, Corvallis, OR 97330 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2007年 / 54卷 / 03期

关键词：

constant G(m)-C; constant transconductance; G(m)-C filters; switched-capacitor current source;

D O I：

10.1109/TCSII.2006.889446

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 switched-capacitor bias that provides a constant G(m)-C characteristic over process and temperature variation is presented. The bias can be adapted for use with subthreshold circuits, or circuits in strong inversion. It uses eight transistors, five switches, and three capacitors, and performs with supply voltages less than 0.9 V. Theoretical output current is derived, and stability analysis is performed. Simulated results showing an op-amp with very consistent pulse response are presented.

引用

页码：222 / 226

页数：5

共 11 条

[1] A 2-nW 1.1-V self-biased current reference in CMOS technology [J].

Camacho-Galeano, EM ;

Galup-Montoro, C ;

Schneider, MC .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2005, 52 (02) :61-65

[2] 1.5-V square-root domain second-order filter with on-chip tuning [J].

De La Cruz-Blas, CA ;

López-Martín, AJ ;

Carlosena, A .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2005, 52 (10) :1996-2006

[3] A new compact temperature-compensated CMOS current reference [J].

Fiori, F ;

Crovetti, PS .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2005, 52 (11) :724-728

[4]

Hufford M, 2005, IEEE CUST INTEGR CIR, P549

[5]

JOHNS D, 1997, ANALOG INTEGR CIRC S, P628

[6]

JOHNS DA, 1997, ANALOG INTEGR CIRC S, P248

[7] A micropower CMOS continuous-time filter with on-chip automatic tuning [J].

Omeni, O ;

Rodríguez-Villegas, E ;

Toumazou, C .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2005, 52 (04) :695-705

[8]

RAZAVI B, 2001, DESIGN ANALOG CMOS I, pCH11

[9] UNDERSTANDING WIDE-BAND MOS-TRANSISTORS [J].

STEININGER, JM .

IEEE CIRCUITS AND DEVICES MAGAZINE, 1990, 6 (03) :26-31

[10] Constant transconductance bias circuit with an on-chip resistor [J].

Talebbeydokhti, Nema ;

Hanumolu, Pavan Kumar ;

Kurahashi, Peter ;

Moon, Un-Ku .

2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS, 2006, :2857-+

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