Extremely simple constant-gm technique for low voltage rail-to-rail amplifier input stage

Boram Lee; Ted Higman

doi:10.1109/ICECS.2011.6122276

Extremely simple constant-gm technique for low voltage rail-to-rail amplifier input stage

Boram Lee, Ted Higman

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Scopus citations

Abstract

In this paper we present a novel, extremely simple constant transconductance (gm) technique for a rail-to-rail CMOS amplifier input stage. While the level shifting technique is one of the most popular conventional methods to achieve constant-gm ([1], [6]), in [1], two PMOS source followers, totalling 4 PMOS transistors, are used for level shifting. But in this paper, only one diode connected NMOS transistor is used and similar results to the conventional level shifting method have been achieved. Rail-to-rail input stage with 1.6V supply voltage is proposed and simulated by Cadence SPECTRE with TSMC 0.25-μm CMOS technology.

Original language	English (US)
Title of host publication	2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011
Pages	314-317
Number of pages	4
DOIs	https://doi.org/10.1109/ICECS.2011.6122276
State	Published - Dec 1 2011
Event	2011 18th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2011 - Beirut, Lebanon Duration: Dec 11 2011 → Dec 14 2011

Publication series

Name	2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011

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Other	2011 18th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2011
Country/Territory	Lebanon
City	Beirut
Period	12/11/11 → 12/14/11

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10.1109/ICECS.2011.6122276

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Lee, B., & Higman, T. (2011). Extremely simple constant-gm technique for low voltage rail-to-rail amplifier input stage. In 2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011 (pp. 314-317). Article 6122276 (2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011). https://doi.org/10.1109/ICECS.2011.6122276

Extremely simple constant-gm technique for low voltage rail-to-rail amplifier input stage. / Lee, Boram; Higman, Ted.
2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011. 2011. p. 314-317 6122276 (2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, B & Higman, T 2011, Extremely simple constant-gm technique for low voltage rail-to-rail amplifier input stage. in 2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011., 6122276, 2011 18th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2011, pp. 314-317, 2011 18th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2011, Beirut, Lebanon, 12/11/11. https://doi.org/10.1109/ICECS.2011.6122276

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abstract = "In this paper we present a novel, extremely simple constant transconductance (gm) technique for a rail-to-rail CMOS amplifier input stage. While the level shifting technique is one of the most popular conventional methods to achieve constant-gm ([1], [6]), in [1], two PMOS source followers, totalling 4 PMOS transistors, are used for level shifting. But in this paper, only one diode connected NMOS transistor is used and similar results to the conventional level shifting method have been achieved. Rail-to-rail input stage with 1.6V supply voltage is proposed and simulated by Cadence SPECTRE with TSMC 0.25-μm CMOS technology.",

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AB - In this paper we present a novel, extremely simple constant transconductance (gm) technique for a rail-to-rail CMOS amplifier input stage. While the level shifting technique is one of the most popular conventional methods to achieve constant-gm ([1], [6]), in [1], two PMOS source followers, totalling 4 PMOS transistors, are used for level shifting. But in this paper, only one diode connected NMOS transistor is used and similar results to the conventional level shifting method have been achieved. Rail-to-rail input stage with 1.6V supply voltage is proposed and simulated by Cadence SPECTRE with TSMC 0.25-μm CMOS technology.

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Extremely simple constant-gm technique for low voltage rail-to-rail amplifier input stage

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