Rail-to-rail CMOS complementary input stage with alternating active differential pairs

M. R. Valero; A. Roman-Loera; J. Ramirez-Angulo; N. Medrano; S. Celma

doi:10.1109/ISCAS.2014.6865395

Rail-to-rail CMOS complementary input stage with alternating active differential pairs

M. R. Valero, A. Roman-Loera, J. Ramirez-Angulo, N. Medrano, S. Celma

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

6 Citations (Scopus)

Abstract

A simple and power efficient scheme for input rail-to-rail Op-Amp operation with constant g_m and CMRR over the common mode input range is introduced. The input stage uses complementary differential pairs but only one pair is active at a time. Three implementations of the scheme are discussed. They use very compact control circuitry to turn only one of the differential pairs at a time. Simulations and experimental verification of the proposed scheme are provided from a test chip prototype in 0.5μm CMOS technology.

Original language	English
Title of host publication	2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1356-1359
Number of pages	4
ISBN (Print)	9781479934324
DOIs	https://doi.org/10.1109/ISCAS.2014.6865395
Publication status	Published - 1 Jan 2014
Event	2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 - Melbourne, VIC, Australia Duration: 1 Jun 2014 → 5 Jun 2014

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Conference

Conference	2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
Country/Territory	Australia
City	Melbourne, VIC
Period	1/06/14 → 5/06/14

Keywords

amplifiers
analog integrated circuits
CMOS Op-Amps
rail -to-rail

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10.1109/ISCAS.2014.6865395

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Valero, M. R., Roman-Loera, A., Ramirez-Angulo, J., Medrano, N., & Celma, S. (2014). Rail-to-rail CMOS complementary input stage with alternating active differential pairs. In 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 (pp. 1356-1359). Article 6865395 (Proceedings - IEEE International Symposium on Circuits and Systems). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ISCAS.2014.6865395

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abstract = "A simple and power efficient scheme for input rail-to-rail Op-Amp operation with constant gm and CMRR over the common mode input range is introduced. The input stage uses complementary differential pairs but only one pair is active at a time. Three implementations of the scheme are discussed. They use very compact control circuitry to turn only one of the differential pairs at a time. Simulations and experimental verification of the proposed scheme are provided from a test chip prototype in 0.5μm CMOS technology.",

keywords = "amplifiers, analog integrated circuits, CMOS Op-Amps, rail -to-rail",

author = "Valero, {M. R.} and A. Roman-Loera and J. Ramirez-Angulo and N. Medrano and S. Celma",

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Valero, MR, Roman-Loera, A, Ramirez-Angulo, J, Medrano, N & Celma, S 2014, Rail-to-rail CMOS complementary input stage with alternating active differential pairs. in 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014., 6865395, Proceedings - IEEE International Symposium on Circuits and Systems, Institute of Electrical and Electronics Engineers (IEEE), pp. 1356-1359, 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014, Melbourne, VIC, Australia, 1/06/14. https://doi.org/10.1109/ISCAS.2014.6865395

Rail-to-rail CMOS complementary input stage with alternating active differential pairs. / Valero, M. R.; Roman-Loera, A.; Ramirez-Angulo, J. et al.
2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014. Institute of Electrical and Electronics Engineers (IEEE), 2014. p. 1356-1359 6865395 (Proceedings - IEEE International Symposium on Circuits and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Rail-to-rail CMOS complementary input stage with alternating active differential pairs

AU - Valero, M. R.

AU - Roman-Loera, A.

AU - Ramirez-Angulo, J.

AU - Medrano, N.

AU - Celma, S.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - A simple and power efficient scheme for input rail-to-rail Op-Amp operation with constant gm and CMRR over the common mode input range is introduced. The input stage uses complementary differential pairs but only one pair is active at a time. Three implementations of the scheme are discussed. They use very compact control circuitry to turn only one of the differential pairs at a time. Simulations and experimental verification of the proposed scheme are provided from a test chip prototype in 0.5μm CMOS technology.

AB - A simple and power efficient scheme for input rail-to-rail Op-Amp operation with constant gm and CMRR over the common mode input range is introduced. The input stage uses complementary differential pairs but only one pair is active at a time. Three implementations of the scheme are discussed. They use very compact control circuitry to turn only one of the differential pairs at a time. Simulations and experimental verification of the proposed scheme are provided from a test chip prototype in 0.5μm CMOS technology.

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KW - analog integrated circuits

KW - CMOS Op-Amps

KW - rail -to-rail

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M3 - Conference Contribution (Conference Proceeding)

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SN - 9781479934324

T3 - Proceedings - IEEE International Symposium on Circuits and Systems

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BT - 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014

Y2 - 1 June 2014 through 5 June 2014

ER -

Valero MR, Roman-Loera A, Ramirez-Angulo J, Medrano N, Celma S. Rail-to-rail CMOS complementary input stage with alternating active differential pairs. In 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014. Institute of Electrical and Electronics Engineers (IEEE). 2014. p. 1356-1359. 6865395. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS.2014.6865395

Rail-to-rail CMOS complementary input stage with alternating active differential pairs

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