Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver

Minhyun Jin; Chaewon Kim; Sooyoun Kim; Minkyu Song

doi:10.1109/TENCON.2018.8650254

Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver

Minhyun Jin, Chaewon Kim, Sooyoun Kim, Minkyu Song

Division of System Semiconductor

Dongguk University

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

1 Scopus citations

Abstract

A smart image sensor system with a current-steering digital-to-analog converter (DAC) for autofocusing micro-lens driver is presented. Recently, most of smart image sensor systems want to extend the lens focusing distance with high speed motor drive. Thus they need a high-performance current-steering DAC to drive the lens focusing linear motor. In order to satisfy the specifications, DAC needs small chip area, low power consumption, and high speed operation. In this paper, a brick current cell layout technique and a novel digital logic are proposed. The measured results are within ±0.6LSB for INL, and within ±0.5LSB for DNL. Further, the measured SFDR is 79dB at 1.2MHz output frequency with 250MHz clock frequency. It has 45.6mW power dissipation at 3.3V power supply.

Original language	English
Title of host publication	Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1338-1341
Number of pages	4
ISBN (Electronic)	9781538654576
DOIs	https://doi.org/10.1109/TENCON.2018.8650254
State	Published - 2 Jul 2018
Event	2018 IEEE Region 10 Conference, TENCON 2018 - Jeju, Korea, Republic of Duration: 28 Oct 2018 → 31 Oct 2018

Publication series

Name	IEEE Region 10 Annual International Conference, Proceedings/TENCON
Volume	2018-October
ISSN (Print)	2159-3442
ISSN (Electronic)	2159-3450

Conference

Conference	2018 IEEE Region 10 Conference, TENCON 2018
Country/Territory	Korea, Republic of
City	Jeju
Period	28/10/18 → 31/10/18

Access to Document

10.1109/TENCON.2018.8650254

Cite this

Jin, M., Kim, C., Kim, S., & Song, M. (2018). Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver. In Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference (pp. 1338-1341). Article 8650254 (IEEE Region 10 Annual International Conference, Proceedings/TENCON; Vol. 2018-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TENCON.2018.8650254

Jin, Minhyun ; Kim, Chaewon ; Kim, Sooyoun et al. / Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver. Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1338-1341 (IEEE Region 10 Annual International Conference, Proceedings/TENCON).

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title = "Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver",

abstract = "A smart image sensor system with a current-steering digital-to-analog converter (DAC) for autofocusing micro-lens driver is presented. Recently, most of smart image sensor systems want to extend the lens focusing distance with high speed motor drive. Thus they need a high-performance current-steering DAC to drive the lens focusing linear motor. In order to satisfy the specifications, DAC needs small chip area, low power consumption, and high speed operation. In this paper, a brick current cell layout technique and a novel digital logic are proposed. The measured results are within ±0.6LSB for INL, and within ±0.5LSB for DNL. Further, the measured SFDR is 79dB at 1.2MHz output frequency with 250MHz clock frequency. It has 45.6mW power dissipation at 3.3V power supply.",

author = "Minhyun Jin and Chaewon Kim and Sooyoun Kim and Minkyu Song",

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doi = "10.1109/TENCON.2018.8650254",

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Jin, M, Kim, C, Kim, S & Song, M 2018, Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver. in Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference., 8650254, IEEE Region 10 Annual International Conference, Proceedings/TENCON, vol. 2018-October, Institute of Electrical and Electronics Engineers Inc., pp. 1338-1341, 2018 IEEE Region 10 Conference, TENCON 2018, Jeju, Korea, Republic of, 28/10/18. https://doi.org/10.1109/TENCON.2018.8650254

Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver. / Jin, Minhyun; Kim, Chaewon; Kim, Sooyoun et al.
Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1338-1341 8650254 (IEEE Region 10 Annual International Conference, Proceedings/TENCON; Vol. 2018-October).

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

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AB - A smart image sensor system with a current-steering digital-to-analog converter (DAC) for autofocusing micro-lens driver is presented. Recently, most of smart image sensor systems want to extend the lens focusing distance with high speed motor drive. Thus they need a high-performance current-steering DAC to drive the lens focusing linear motor. In order to satisfy the specifications, DAC needs small chip area, low power consumption, and high speed operation. In this paper, a brick current cell layout technique and a novel digital logic are proposed. The measured results are within ±0.6LSB for INL, and within ±0.5LSB for DNL. Further, the measured SFDR is 79dB at 1.2MHz output frequency with 250MHz clock frequency. It has 45.6mW power dissipation at 3.3V power supply.

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Jin M, Kim C, Kim S , Song M. Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver. In Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1338-1341. 8650254. (IEEE Region 10 Annual International Conference, Proceedings/TENCON). doi: 10.1109/TENCON.2018.8650254

Design of a Smart Image Sensor with a Current Steering CMOS DAC for High Performance Autofocusing Micro-lens Driver

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