Abstract
This paper proposes a power-efficient capacitor-array-based digital-to-time converter (DTC) using a constant-slope approach. Fringe-capacitor-based digital-to-analog converter (C-DAC) array is used to regulate starting supply voltage of the constant slope fed to a fixed threshold comparator. The proposed DTC consumes only 15 μW from a 1V supply, while achieving fine resolution of 103 fs when running at 40 MHz. The measured INL and DNL are 0.73/0.35 LSB within a 5-bit range. The DTC achieves the best figure-of-merit of 8.5 fJ among state-of-the-art when normalizing the product of power and INL to the product of input frequency and range.
Original language | English |
---|---|
Title of host publication | 2017 IEEE Asian Solid-State Circuits Conference (A-SSCC)) |
Subtitle of host publication | Proceedings of Technical Papers |
Place of Publication | Danvers, MA |
Publisher | IEEE |
Pages | 93-96 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-5386-3178-2 |
DOIs | |
Publication status | Published - 2017 |
Event | A-SSCC 2017: 13th annual IEEE Asian Solid-State Circuits Conference - Grand Hilton Hotel, Seoul, Korea, Republic of Duration: 6 Nov 2017 → 8 Nov 2017 Conference number: 13 http://www.asscc.org/ |
Conference
Conference | A-SSCC 2017 |
---|---|
Country/Territory | Korea, Republic of |
City | Seoul |
Period | 6/11/17 → 8/11/17 |
Internet address |
Keywords
- digital-to-time converter (DTC)
- low-power
- low voltage
- power-efficient
- capacitor-based DAC (C-DAC)
- constant slope
- high resolution
- INL
- PLL