Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/219276
Title: A 58-ppm/&x00B0;C 40-nW BGR at Supply From 0.5 V for Energy Harvesting IoT Devices
Authors: Junchao Mu;Lianxi Liu;Zhangming Zhu;Yintang Yang
Year: 2017
Publisher: IEEE
Abstract: This brief presents a 40-nW 0.5-V supply voltage and 0.24-V output reference for an energy harvester. The emitter-base voltage of a PNP transistor is divided by the presented switch capacitor circuit to obtain the low output reference. The resistorless proportional-to-absolute-temperature circuit and the low-voltage high-power-supply-rejection-ratio current source are used to improve the accuracy and line regulation performance of the reference. The proposed bandgap reference is implemented in a 0.18-&x03BC;m standard complementary metal-oxide-semiconductor process and has a total area of 0.058 mm<sup>2</sup>. Test results show that the minimum supply voltage is 0.5 V due to the clock bootstrap and 2 &x00D7; VDD doubler. The line regulation is about 1.1 mV/V in the supply voltage range of 0.5-0.9 V. With 3-bit trimming, the temperature coefficient of 58 ppm/&x00B0;C in the range of -25&x00B0;C-85&x00B0;C and the accuracy of 0.9% (3&x03B4;) can be achieved.
URI: http://localhost/handle/Hannan/219276
volume: 64
issue: 7
More Information: 752,
756
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7552541.pdf1.45 MBAdobe PDF
Title: A 58-ppm/&x00B0;C 40-nW BGR at Supply From 0.5 V for Energy Harvesting IoT Devices
Authors: Junchao Mu;Lianxi Liu;Zhangming Zhu;Yintang Yang
Year: 2017
Publisher: IEEE
Abstract: This brief presents a 40-nW 0.5-V supply voltage and 0.24-V output reference for an energy harvester. The emitter-base voltage of a PNP transistor is divided by the presented switch capacitor circuit to obtain the low output reference. The resistorless proportional-to-absolute-temperature circuit and the low-voltage high-power-supply-rejection-ratio current source are used to improve the accuracy and line regulation performance of the reference. The proposed bandgap reference is implemented in a 0.18-&x03BC;m standard complementary metal-oxide-semiconductor process and has a total area of 0.058 mm<sup>2</sup>. Test results show that the minimum supply voltage is 0.5 V due to the clock bootstrap and 2 &x00D7; VDD doubler. The line regulation is about 1.1 mV/V in the supply voltage range of 0.5-0.9 V. With 3-bit trimming, the temperature coefficient of 58 ppm/&x00B0;C in the range of -25&x00B0;C-85&x00B0;C and the accuracy of 0.9% (3&x03B4;) can be achieved.
URI: http://localhost/handle/Hannan/219276
volume: 64
issue: 7
More Information: 752,
756
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7552541.pdf1.45 MBAdobe PDF
Title: A 58-ppm/&x00B0;C 40-nW BGR at Supply From 0.5 V for Energy Harvesting IoT Devices
Authors: Junchao Mu;Lianxi Liu;Zhangming Zhu;Yintang Yang
Year: 2017
Publisher: IEEE
Abstract: This brief presents a 40-nW 0.5-V supply voltage and 0.24-V output reference for an energy harvester. The emitter-base voltage of a PNP transistor is divided by the presented switch capacitor circuit to obtain the low output reference. The resistorless proportional-to-absolute-temperature circuit and the low-voltage high-power-supply-rejection-ratio current source are used to improve the accuracy and line regulation performance of the reference. The proposed bandgap reference is implemented in a 0.18-&x03BC;m standard complementary metal-oxide-semiconductor process and has a total area of 0.058 mm<sup>2</sup>. Test results show that the minimum supply voltage is 0.5 V due to the clock bootstrap and 2 &x00D7; VDD doubler. The line regulation is about 1.1 mV/V in the supply voltage range of 0.5-0.9 V. With 3-bit trimming, the temperature coefficient of 58 ppm/&x00B0;C in the range of -25&x00B0;C-85&x00B0;C and the accuracy of 0.9% (3&x03B4;) can be achieved.
URI: http://localhost/handle/Hannan/219276
volume: 64
issue: 7
More Information: 752,
756
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7552541.pdf1.45 MBAdobe PDF