Abstract
This paper presents a 6.9mW 120fps 28×50 channels capacitive touch sensor for 1mm-φ stylus. A current conveyor analog front-end enables a current signaling before its voltage conversion. A current-driven ΔΣ ADC directly interfaces to the differential current for the digital conversion. A test IC is fabricated in 0.18μm CMOS process. This work achieves SNR of 41.7dB with 1mm-φ stylus, consuming only 6.9mW. This results in an energy efficiency of 0.41nJ/step which is more than 4× improvement on the state-of-the-art works.
| Original language | English |
|---|---|
| Title of host publication | ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 305-306 |
| Number of pages | 2 |
| ISBN (Electronic) | 9781509006021 |
| DOIs | |
| Publication status | Published - 2018 Feb 20 |
| Event | 23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018 - Jeju, Korea, Republic of Duration: 2018 Jan 22 → 2018 Jan 25 |
Publication series
| Name | Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC |
|---|---|
| Volume | 2018-January |
Other
| Other | 23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018 |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Jeju |
| Period | 18/1/22 → 18/1/25 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Computer Science Applications
- Computer Graphics and Computer-Aided Design
