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A 0.5-V 250-nW 65-d...
A 0.5-V 250-nW 65-dB SNDR Passive ΔΣ Modulator for Medical Implant Devices
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- Fazli Yeknami, Ali (author)
- Linköpings universitet,Elektroniska komponenter,Tekniska högskolan
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- Alvandpour, Atila (author)
- Linköpings universitet,Elektroniska komponenter,Tekniska högskolan
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China, 19-23 May, 2013. - 9781467357609 ; , s. 2010-2013
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- A 0.5-V ultra-low-power second-order DT DS modulator is presented in this paper for medical implant devices. The modulator employs 2nd-order passive low-pass filter and ultra-low-voltage building blocks, including preamplifier, regenerative comparator, and clock controller, in order to enable operation near 0.5 V supply. A low-noise and gain-enhanced single-stage preamplifier is developed using a body-driven technique. Passive filter is gain boosted by power-efficient charge-redistribution amplification scheme. Designed in a 65nm CMOS technology, the modulator achieves 65 dB peak SNDR over a 500 Hz signal bandwidth, while it consumes 250 nW from a 0.5 V supply. The modulator is functional at 0.45V and obtains 52 dB SNR, while consuming 200 nW.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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- kon (subject category)
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