TY - GEN
T1 - A Low-Power 0.8% Sensing Error On-Chip Current Sensor with Auto-Accuracy Adjustment
AU - Fan, Shiquan
AU - Dong, Jun
AU - Zhang, Rui
AU - Zhao, Yang
AU - Geng, Li
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - In this paper, an on-chip low-power current sensor with auto-accuracy adjustment is proposed for current monitor applications, which is composed by a sensing element and a quantizer. The sensing element is designed as a current mirror with auto-adjustable current ratio of K determined by the value of sensing current. When the current is larger than a threshold value, K changes from 1000 to 2000 to reduce the power consumption. The quantizer includes a comparator, two current-source arrays and two successive approximation register (SAR) logic circuits. The main 8-bit SAR logic is adopted to control a current-source array to realize current quantized range, the auxiliary 4-bit SAR logic is employed to control another current.
AB - In this paper, an on-chip low-power current sensor with auto-accuracy adjustment is proposed for current monitor applications, which is composed by a sensing element and a quantizer. The sensing element is designed as a current mirror with auto-adjustable current ratio of K determined by the value of sensing current. When the current is larger than a threshold value, K changes from 1000 to 2000 to reduce the power consumption. The quantizer includes a comparator, two current-source arrays and two successive approximation register (SAR) logic circuits. The main 8-bit SAR logic is adopted to control a current-source array to realize current quantized range, the auxiliary 4-bit SAR logic is employed to control another current.
KW - Current sensor
KW - SAR logic
KW - auto-accuracy adjustment
KW - current-source array
KW - quantization
UR - https://www.scopus.com/pages/publications/85065988025
U2 - 10.1109/CICTA.2018.8706102
DO - 10.1109/CICTA.2018.8706102
M3 - 会议稿件
AN - SCOPUS:85065988025
T3 - Proceedings of 2018 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2018
SP - 106
EP - 107
BT - Proceedings of 2018 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2018
Y2 - 21 November 2018 through 23 November 2018
ER -