A 0.45V-to-2.7V inductive-coupling level shifter

Keita Takatsu; Kiichi Niitsu; Tsunaaki Shidei; Noriyuki Miura; Tadahiro Kuroda

doi:10.1109/ASSCC.2010.5716591

A 0.45V-to-2.7V inductive-coupling level shifter

Keita Takatsu, Kiichi Niitsu, Tsunaaki Shidei, Noriyuki Miura, Tadahiro Kuroda

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

Abstract

This paper presents a 0.45V-to-2.7V level shifter utilizing inductive coupling. Since primary and secondary coils are AC-coupled, each coil can be biased at arbitrary voltage independent from the conversion level difference. This enables both the primary and the secondary circuits to operate at the optimal operating region. In addition, the inductive coupling itself can provide an additional intermediate level-shifting by exploiting a coil-turn ratio between the primary and the secondary coils. As a result, wide-range voltage level conversion can be achieved. Test chip measurement in 65nm CMOS demonstrates voltage level conversion from 0.45V to 2.7V. Compared to a conventional level shifter, the primary voltage is reduced by 0.24V. In addition, the energy-delay product is reduced to 1/8.

Original language	English
Title of host publication	2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010
Pages	205-208
Number of pages	4
DOIs	https://doi.org/10.1109/ASSCC.2010.5716591
Publication status	Published - 2010 Dec 1
Event	2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010 - Beijing, China Duration: 2010 Nov 8 → 2010 Nov 10

Publication series

Name	2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010

Other

Other	2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010
Country/Territory	China
City	Beijing
Period	10/11/8 → 10/11/10

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/ASSCC.2010.5716591

Cite this

Takatsu, K, Niitsu, K, Shidei, T, Miura, N & Kuroda, T 2010, A 0.45V-to-2.7V inductive-coupling level shifter. in 2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010., 5716591, 2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010, pp. 205-208, 2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010, Beijing, China, 10/11/8. https://doi.org/10.1109/ASSCC.2010.5716591

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title = "A 0.45V-to-2.7V inductive-coupling level shifter",

abstract = "This paper presents a 0.45V-to-2.7V level shifter utilizing inductive coupling. Since primary and secondary coils are AC-coupled, each coil can be biased at arbitrary voltage independent from the conversion level difference. This enables both the primary and the secondary circuits to operate at the optimal operating region. In addition, the inductive coupling itself can provide an additional intermediate level-shifting by exploiting a coil-turn ratio between the primary and the secondary coils. As a result, wide-range voltage level conversion can be achieved. Test chip measurement in 65nm CMOS demonstrates voltage level conversion from 0.45V to 2.7V. Compared to a conventional level shifter, the primary voltage is reduced by 0.24V. In addition, the energy-delay product is reduced to 1/8.",

author = "Keita Takatsu and Kiichi Niitsu and Tsunaaki Shidei and Noriyuki Miura and Tadahiro Kuroda",

year = "2010",

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doi = "10.1109/ASSCC.2010.5716591",

language = "English",

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T1 - A 0.45V-to-2.7V inductive-coupling level shifter

AU - Takatsu, Keita

AU - Niitsu, Kiichi

AU - Shidei, Tsunaaki

AU - Miura, Noriyuki

AU - Kuroda, Tadahiro

PY - 2010/12/1

Y1 - 2010/12/1

N2 - This paper presents a 0.45V-to-2.7V level shifter utilizing inductive coupling. Since primary and secondary coils are AC-coupled, each coil can be biased at arbitrary voltage independent from the conversion level difference. This enables both the primary and the secondary circuits to operate at the optimal operating region. In addition, the inductive coupling itself can provide an additional intermediate level-shifting by exploiting a coil-turn ratio between the primary and the secondary coils. As a result, wide-range voltage level conversion can be achieved. Test chip measurement in 65nm CMOS demonstrates voltage level conversion from 0.45V to 2.7V. Compared to a conventional level shifter, the primary voltage is reduced by 0.24V. In addition, the energy-delay product is reduced to 1/8.

AB - This paper presents a 0.45V-to-2.7V level shifter utilizing inductive coupling. Since primary and secondary coils are AC-coupled, each coil can be biased at arbitrary voltage independent from the conversion level difference. This enables both the primary and the secondary circuits to operate at the optimal operating region. In addition, the inductive coupling itself can provide an additional intermediate level-shifting by exploiting a coil-turn ratio between the primary and the secondary coils. As a result, wide-range voltage level conversion can be achieved. Test chip measurement in 65nm CMOS demonstrates voltage level conversion from 0.45V to 2.7V. Compared to a conventional level shifter, the primary voltage is reduced by 0.24V. In addition, the energy-delay product is reduced to 1/8.

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T3 - 2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010

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BT - 2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010

T2 - 2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010

Y2 - 8 November 2010 through 10 November 2010

ER -

A 0.45V-to-2.7V inductive-coupling level shifter

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