A 0.01 mm210MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS

Xiaomeng An; Sining Pan; Hui Jiang; Kofi A.A. Makinwa

doi:10.1109/ISSCC42615.2023.10067530

A 0.01 mm²10MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS

Xiaomeng An, Sining Pan, Hui Jiang, Kofi A.A. Makinwa

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

CMOS frequency references based on RC oscillators are usually preferred over bulky crystals in loT applications [1-5]. However, due to the process spread and finite temperature coefficient (TC) of most on-chip resistors, RC oscillators require trimming and temperature compensation to achieve decent accuracy. Enabled by high-resolution trimming techniques such as DeltaSigma [1], [2] or pulse-density [3] modulation, recent designs can obtain good accuracy (<0.1 %) at the expense of large chip area. However, existing compact (<0.02mm2) designs suffer from frequency errors in the order of 1% or more [4], [5]. Moreover, their temperature compensation schemes usually require the use of resistors with complementary TCs, which are not available in all CMOS technologies.

Original language	English
Title of host publication	2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	60-62
Number of pages	3
ISBN (Electronic)	9781665428002
DOIs	https://doi.org/10.1109/ISSCC42615.2023.10067530
Publication status	Published - 2023
Event	2023 IEEE International Solid-State Circuits Conference, ISSCC 2023 - Virtual, Online, United States Duration: 19 Feb 2023 → 23 Feb 2023

Publication series

Name	Digest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume	2023-February
ISSN (Print)	0193-6530

Conference

Conference	2023 IEEE International Solid-State Circuits Conference, ISSCC 2023
Country/Territory	United States
City	Virtual, Online
Period	19/02/23 → 23/02/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Access to Document

10.1109/ISSCC42615.2023.10067530

A_0.01_mm2_10MHz_RC_Frequency_Reference_with_a_1-Point_On-Chip-Trimmed_Inaccuracy_of_boldsymbolpm_0.28_from_boldsymbol-45mathrmomathrmC_to_boldsymbol125mathrmomathrmC_in_0.18m_CMOSFinal published version, 985 KB

Cite this

An, X., Pan, S., Jiang, H., & Makinwa, K. A. A. (2023). A 0.01 mm²10MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS. In 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023 (pp. 60-62). (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 2023-February). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ISSCC42615.2023.10067530

An, Xiaomeng ; Pan, Sining ; Jiang, Hui et al. / A 0.01 mm²10MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS. 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023. Institute of Electrical and Electronics Engineers (IEEE), 2023. pp. 60-62 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).

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title = "A 0.01 mm210MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS",

abstract = "CMOS frequency references based on RC oscillators are usually preferred over bulky crystals in loT applications [1-5]. However, due to the process spread and finite temperature coefficient (TC) of most on-chip resistors, RC oscillators require trimming and temperature compensation to achieve decent accuracy. Enabled by high-resolution trimming techniques such as DeltaSigma [1], [2] or pulse-density [3] modulation, recent designs can obtain good accuracy (<0.1 %) at the expense of large chip area. However, existing compact (<0.02mm2) designs suffer from frequency errors in the order of 1% or more [4], [5]. Moreover, their temperature compensation schemes usually require the use of resistors with complementary TCs, which are not available in all CMOS technologies.",

author = "Xiaomeng An and Sining Pan and Hui Jiang and Makinwa, {Kofi A.A.}",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023 ; Conference date: 19-02-2023 Through 23-02-2023",

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An, X, Pan, S, Jiang, H & Makinwa, KAA 2023, A 0.01 mm²10MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS. in 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023. Digest of Technical Papers - IEEE International Solid-State Circuits Conference, vol. 2023-February, Institute of Electrical and Electronics Engineers (IEEE), pp. 60-62, 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023, Virtual, Online, United States, 19/02/23. https://doi.org/10.1109/ISSCC42615.2023.10067530

A 0.01 mm²10MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS. / An, Xiaomeng; Pan, Sining; Jiang, Hui et al.
2023 IEEE International Solid-State Circuits Conference, ISSCC 2023. Institute of Electrical and Electronics Engineers (IEEE), 2023. p. 60-62 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 2023-February).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Jiang, Hui

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N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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N2 - CMOS frequency references based on RC oscillators are usually preferred over bulky crystals in loT applications [1-5]. However, due to the process spread and finite temperature coefficient (TC) of most on-chip resistors, RC oscillators require trimming and temperature compensation to achieve decent accuracy. Enabled by high-resolution trimming techniques such as DeltaSigma [1], [2] or pulse-density [3] modulation, recent designs can obtain good accuracy (<0.1 %) at the expense of large chip area. However, existing compact (<0.02mm2) designs suffer from frequency errors in the order of 1% or more [4], [5]. Moreover, their temperature compensation schemes usually require the use of resistors with complementary TCs, which are not available in all CMOS technologies.

AB - CMOS frequency references based on RC oscillators are usually preferred over bulky crystals in loT applications [1-5]. However, due to the process spread and finite temperature coefficient (TC) of most on-chip resistors, RC oscillators require trimming and temperature compensation to achieve decent accuracy. Enabled by high-resolution trimming techniques such as DeltaSigma [1], [2] or pulse-density [3] modulation, recent designs can obtain good accuracy (<0.1 %) at the expense of large chip area. However, existing compact (<0.02mm2) designs suffer from frequency errors in the order of 1% or more [4], [5]. Moreover, their temperature compensation schemes usually require the use of resistors with complementary TCs, which are not available in all CMOS technologies.

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An X, Pan S, Jiang H, Makinwa KAA. A 0.01 mm²10MHz RC Frequency Reference with a 1-Point On-Chip-Trimmed Inaccuracy of ±0.28% from -45°C to 125°C in 0.18μm CMOS. In 2023 IEEE International Solid-State Circuits Conference, ISSCC 2023. Institute of Electrical and Electronics Engineers (IEEE). 2023. p. 60-62. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). doi: 10.1109/ISSCC42615.2023.10067530