© The Institution of Engineering and Technology
A low-power technique to reduce the power consumption of the dynamic comparators is presented. Using this technique, the pre-amplification phase of the comparator is stopped without any effect on the dynamic behaviour of the comparator. Therefore, the power consumption of the pre-amplifier stage which is the main part of the total power consumption is reduced significantly. Simulation results in various comparators reveal that the proposed technique reduces the total power consumption by more than 50%.
References
-
-
1)
-
6. Zhu, Z., Xiao, Y., Song, X.: ‘Vcm-based monotonic capacitor switching scheme for SAR ADC’, Electron. Lett., 2013, 49, (5), pp. 327–329 (doi: 10.1049/el.2012.3332).
-
2)
-
7. Abbas, M., Furukawa, Y., Komatsu, S., Takahiro, J., Asada, K.: ‘Clocked comparator for high-speed applications in 65 nm technology’. 2010 IEEE Asian Solid State Circuits Conf. (A-SSCC), November 2010, pp. 1–4.
-
3)
-
6. Lu, J., Holleman, J.: ‘A low-power high-precision comparator with time-domain bulk-tuned offset cancellation’, IEEE Trans. Circuits Syst. I, Regul. Pap., 2013, 60, (5), pp. 1158–1167 (doi: 10.1109/TCSI.2013.2239175).
-
4)
-
26. Razavi, B., Wooley, B.A.: ‘Design techniques for high-speed, high-resolution comparators’, IEEE J. Solid-State Circuits, 1992, 27, (13), pp. 1916–1926 (doi: 10.1109/4.173122).
-
5)
-
4. Khorami, A., Sharifkhani, M.: ‘Zero-power mismatch-independent digital to analog converter’, AEU-Int. J. Electron. Commun., 2015, 69, (11), pp. 1599–1605 (doi: 10.1016/j.aeue.2015.07.010).
-
6)
-
2. Cho, T., Gray, P.: ‘A 10 b, 20 m sample/s, 35 mw pipeline A/D converter’, IEEE J. Solid-State Circuits, 1995, 30, (3), pp. 166–172 (doi: 10.1109/4.364429).
-
7)
-
5. D'Amico, S., Cocciolo, G., Spagnolo, A., De Matteis, M., Baschirotto, A.: ‘A 7.65-mw 5-bit 90-nm 1-gs/s folded interpolated ADC without calibration’, IEEE Trans. Instrum. Meas., 2014, 63, (2), pp. 295–303 (doi: 10.1109/TIM.2013.2278998).
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