High-CMRR current amplifier architecture and its CMOS implementation

被引：15

作者：

Pennisi, S. ^{[1
]}

Piccioni, M.

Scotti, G.

Trifiletti, A.

机构：

[1] Univ Catania, Dipartimento Ingn Elettr Elettron & Sistemi, I-95125 Catania, Italy

[2] Univ Roma La Sapienza, Dipartimento Ingn Elettron, I-00165 Rome, Italy

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2006年 / 53卷 / 10期

关键词：

CMOS; current mode; current operational amplifiers (COAs); single-to-differential conversion;

D O I：

10.1109/TCSII.2006.882123

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 novel current operational amplifier, in which the traditionally adopted input current follower is replaced by an input stage that exhibits current gain and single-input-to-differential-output conversion, is presented. Due to this, increased values of both dc gain and common-mode rejection ratio (CMRR) are obtained in the overall amplifier. A CMOS implementation, along with postlayout simulations, which are in good agreement with expected data, is also included. The proposed design is supplied with 2.5 V, dissipates 0.7 mW, and provides a nominal dc gain, a gain-bandwidth product, and a CMRR (at dc) of 72 dB, 28 MHz, and greater than 100 dB, respectively.

引用

页码：1118 / 1122

页数：5

共 10 条

[1] A 200 MHz steered current operational amplifier in 1.2-mu m CMOS technology [J].

AbouAllam, E ;

ElMasry, EI .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1997, 32 (02) :245-249

[2] OUTPUT STAGE FOR CURRENT-MODE FEEDBACK-AMPLIFIERS, THEORY AND APPLICATIONS [J].

ARBEL, AF ;

GOLDMINZ, L .

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, 1992, 2 (03) :243-255

[3] A CMOS CURRENT-MODE OPERATIONAL-AMPLIFIER [J].

KAULBERG, T .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1993, 28 (07) :849-852

[4] NEW CURRENT-MODE BIQUAD ON FRIEND-DELIYANNIS ACTIVE RC BIQUAD [J].

MOHAN, PVA .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1995, 42 (03) :225-228

[5] Harmonic distortion on class AB CMOS current output stages [J].

Palmisano, G ;

Palumbo, G ;

Pennisi, S .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 1998, 45 (02) :243-250

[6]

PALMISANO G, 1999, CMOS CURRENT AMPLIFI

[7] Low-voltage CMOS current amplifier and its use for high-performance voltage amplification [J].

Pennisi, S .

IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS, 2003, 150 (03) :205-209

[8]

PENNISI S, 2005, P IEEE ISCAS KOB JAP, P2583

[9] A GENERAL-CLASS OF CURRENT AMPLIFIER-BASED BIQUADRATIC FILTER CIRCUITS [J].

ROBERTS, GW ;

SEDRA, AS .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS, 1992, 39 (04) :257-263

[10]

TOUMAZOU C, 1990, ANALOGUE IC DESIGN C

← 1 →