The Complementary Buffer Amplifiers with Low Static Current Consumption for Low-Voltage Analog Microcircuits

Zhuk, Alexey A.; Bugakova, Anna V.; Ovsepyan, Elena V.; Dmitriyenko, Nadezhda A.

doi:10.1109/edm.2018.8435041

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“…It can be used as a voltage buffer between different unit circuits or to detect the voltage value of an internal node without affecting the operation of the internal circuit. [3,4,5,6,7,8,9,10,11,12] Similarly, the quantum controller circuits need voltage buffer to drive large capacitive load and track the voltage level. Moreover, this buffer needs to meet some particular criteria like high slew-rate, operating in liquid helium dewar and consuming extremely low power because of the limitation of refrigerator power.…”

Section: Introductionmentioning

confidence: 99%

A cryogenic low power CMOS analog buffer at 4.2K

Huang

Luo

et al. 2021

IEICE Electron. Express

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A novel power-efficient analog buffer at Liquid Helium Temperature (LHT) is proposed. The proposed circuit is based on an input stage consisting of two complementary differential pairs to achieve rail-to-rail level tracking. Results of simulation based on SMIC 0.18µm CMOS technology show the high driving capability and low quiescent power consumption at cryogenic temperature. Operating at single 1.4 V supply, the circuit achieves a slew-rate of +36 V/µs and -33.8 V/µs for 10 pF capacitive load. The static power of the circuit is only 55.7µW.

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