Bit-line Sense Amplifier Using PMOS Charge Transfer Pre-amplifier for Low-Voltage DRAM

Choongkeun Lee, Taegun Yim, Hongil Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A bit-line sense amplifier using PMOS charge transfer pre-sensing (CTPS) circuit is proposed. The CTPS circuit using charge sharing operation between lines which have different capacitance is useful for increasing small bit-line voltage differences. The PMOS latch transistors of CTPS circuit are used for pre-sensing operation and pull-up latching operation. Because the PMOS latch transistors are used mutually, area overhead of the CTPS is minimized. The PMOS CTPS circuit increases the small bit-line voltage difference and the output voltage difference of the CTPS circuit becomes the input voltage difference of the latch sense amplifier. Using the PMOS CTPS circuit, the speed of read operation and the reliability of the read operation is improved. The performance of the proposed scheme is verified by the simulation using a 45 nm process.

Original languageEnglish
Title of host publicationProceedings of TENCON 2018 - 2018 IEEE Region 10 Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781538654576
Publication statusPublished - 2019 Feb 22
Event2018 IEEE Region 10 Conference, TENCON 2018 - Jeju, Korea, Republic of
Duration: 2018 Oct 282018 Oct 31

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450


Conference2018 IEEE Region 10 Conference, TENCON 2018
Country/TerritoryKorea, Republic of

Bibliographical note

Funding Information:
The EDA tool was supported by the IC Design Education Center (IDEC), Korea.

Funding Information:
ACKNOWLEDGMENT This research was supported by the MOTIE (Ministry of Trade, Industry & Energy) (10080722) and KSRC (Korea Semiconductor Research Consortium) support program for the development of the future semiconductor device.

Publisher Copyright:
© 2018 IEEE.

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering


Dive into the research topics of 'Bit-line Sense Amplifier Using PMOS Charge Transfer Pre-amplifier for Low-Voltage DRAM'. Together they form a unique fingerprint.

Cite this