论文信息 - A low-power, 9-Bit, 1.2 ps resolution two-step time-to-digital converter in 65 nm CMOS

A low-power, 9-Bit, 1.2 ps resolution two-step time-to-digital converter in 65 nm CMOS

This paper presents the design of a low-power, 9-bit, two-step time-to-digital converter (TDC) in 65 nm CMOS. Instead of using an array of time amplifiers (TAs) to amplify the time residue, the proposed TDC reduces the power and area consumptions by using only one TA. The designed TDC achieves a resolution of 1.2 ps with a conversion range of 0.614 ns while consuming 0.602 mW at 10 MHz and 8.299 mW at 150 MHz. The achieved figure-of-merit (FoM) of the TDC is 0.108 pJ/conversion at a frequency of 150 MHz.

M. Dessouky | A. Hamza | Sameh Ibrahim | M. El-Nozahi

[1] Antonio Liscidini,et al. Two-Dimensions Vernier Time-to-Digital Converter , 2010, IEEE Journal of Solid-State Circuits.

[2] M.Z. Straayer,et al. A Multi-Path Gated Ring Oscillator TDC With First-Order Noise Shaping , 2009, IEEE Journal of Solid-State Circuits.

[3] Jae-Yoon Sim,et al. A 1GHz ADPLL with a 1.25ps minimum-resolution sub-exponent TDC in 0.18µm CMOS , 2010, 2010 IEEE International Solid-State Circuits Conference - (ISSCC).

[4] Jae-Yoon Sim,et al. A 1 GHz ADPLL With a 1.25 ps Minimum-Resolution Sub-Exponent TDC in 0.18 $\mu$ m CMOS , 2010, IEEE Journal of Solid-State Circuits.

[5] Michael P. Flynn,et al. A 9-bit, 14 μW and 0.06 mm $^{2}$ Pulse Position Modulation ADC in 90 nm Digital CMOS , 2010, IEEE Journal of Solid-State Circuits.

[6] SeongHwan Cho,et al. A 9 bit, 1.12 ps Resolution 2.5 b/Stage Pipelined Time-to-Digital Converter in 65 nm CMOS Using Time-Register , 2014, IEEE Journal of Solid-State Circuits.

[7] A.A. Abidi,et al. A 9 b, 1.25 ps Resolution Coarse–Fine Time-to-Digital Converter in 90 nm CMOS that Amplifies a Time Residue , 2008, IEEE Journal of Solid-State Circuits.

[8] Stephan Henzler,et al. 90nm 4.7ps-Resolution 0.7-LSB Single-Shot Precision and 19pJ-per-Shot Local Passive Interpolation Time-to-Digital Converter with On-Chip Characterization , 2008, 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.