Article
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None Operational Amplifier (OPA) Based: Design of Analogous Bandgap Reference Voltage
Version 1
: Received: 29 December 2016 / Approved: 29 December 2016 / Online: 29 December 2016 (15:47:33 CET)
How to cite: Chan, H.-P.; Hung, Y.-C. None Operational Amplifier (OPA) Based: Design of Analogous Bandgap Reference Voltage. Preprints 2016, 2016120143. https://doi.org/10.20944/preprints201612.0143.v1 Chan, H.-P.; Hung, Y.-C. None Operational Amplifier (OPA) Based: Design of Analogous Bandgap Reference Voltage. Preprints 2016, 2016120143. https://doi.org/10.20944/preprints201612.0143.v1
Abstract
By using 0.35-um CMOS process, this work achieves a design of analogous band-gap reference voltage circuit with low temperature coefficient. The proposed circuit operates at 3V and generates a reference current of 44 uA. The HSPICE simulation results show the temperature coefficient of this circuit is 23 ppm/℃ at range of -10 ℃ to 100 ℃, and the line regulation (the ratio of output current variation to supply voltage variation) is estimated as 1.95 uA/V from supply voltage variation of 3 V to 5 V. The experimental chip is fabricated and measured. The circuit provides adjustable capability for output voltage among temperature variation of -10 - 100 ℃. The chip area is 534 × 695 um^2. In this new design, the operational amplifier is not necessary. The chip design effort can be great reduced.
Keywords
Band-gap voltage reference; voltage reference; circuit design
Subject
Engineering, Electrical and Electronic Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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