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A high voltage zero-static current voltage scaling ADC interface circuit for micro-stimulator
Lee P.J.-H.1; Chen D.G.1; Bermak A.1; Law M.-K.2
2014
Conference NameIEEE International Symposium on Circuits and Systems (ISCAS)
Source PublicationProceedings - IEEE International Symposium on Circuits and Systems
Pages1380-1383
Conference DateJUN 01-05, 2014
Conference PlaceMelbourne, AUSTRALIA
Abstract

This paper describes a SAR ADC interface circuit, where the input sensing voltage from a bipolar high voltage domain is linearly translated into the low voltage domain where the SAR ADC operates. The proposed interface circuit employs the principle of charge transfer amplifier to deliver information between two different power domains, in one step, without static power consumption, even if both domains do not share the the same ground voltages. To implement the charge transfer scheme using standard asymmetric LDMOS, we propose a novel dynamic body biased high voltage transmission gate. Prototype simulation using a standard 24V BCDMOS process shows that the proposed circuit draws 2.12μW of power when it senses a voltage that swings between +10V and -10V at 1 kSPS sampling frequency. © 2014 IEEE.

DOI10.1109/ISCAS.2014.6865401
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000346488600349
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Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionINSTITUTE OF MICROELECTRONICS
Affiliation1.Hong Kong University of Science and Technology
2.Universidade de Macau
Recommended Citation
GB/T 7714
Lee P.J.-H.,Chen D.G.,Bermak A.,et al. A high voltage zero-static current voltage scaling ADC interface circuit for micro-stimulator[C],2014:1380-1383.
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