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A 0.4 V, sub-nW, 8-...
A 0.4 V, sub-nW, 8-bit 1 kS/s SAR ADC in 65 nm CMOS for Wireless Sensor Applications
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- Harikumar, Prakash (författare)
- Linköpings universitet,Elektroniska Kretsar och System,Tekniska fakulteten
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- Wikner, Jacob (författare)
- Linköpings universitet,Elektroniska Kretsar och System,Tekniska fakulteten
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- Alvandpour, Atila (författare)
- Linköpings universitet,Elektroniska Kretsar och System,Tekniska fakulteten
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2016
- 2016
- Engelska.
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Ingår i: IEEE Transactions on Circuits and Systems - II - Express Briefs. - : Institute of Electrical and Electronics Engineers (IEEE). - 1549-7747 .- 1558-3791. - 9781479998777 ; 63:8, s. 743-747
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This brief presents an 8-bit 1-kS/s successive approximation register (SAR) analog-to-digital converter (ADC), which is targeted at distributed wireless sensor networks powered by energy harvesting. For such energy-constrained applications, it is imperative that the ADC employs ultralow supply voltages and minimizes power consumption. The 8-bit 1-kS/s ADC was designed and fabricated in 65-nm CMOS and uses a supply voltage of 0.4 V. In order to achieve sufficient linearity, a two-stage charge pump was implemented to boost the gate voltage of the sampling switches. A custom-designed unit capacitor of 1.9 fF was used to realize the capacitive digital-to-analog converters. The ADC achieves an effective number of bits of 7.81 bits while consuming 717 pW and attains a figure of merit of 3.19 fJ/conversion-step. The differential nonlinearity and the integral nonlinearity are 0.35 and 0.36 LSB, respectively. The core area occupied by the ADC is only 0.0126 mm2.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Analog-to-digital converter
- ADC
- successive approximation register
- SAR
- ultra-low-voltage
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- ref (ämneskategori)
- art (ämneskategori)
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