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A 0.8-V, 1-MS/s, 10-bit SAR ADC for Multi-Channel Neural Recording.
- Source :
-
IEEE Transactions on Circuits & Systems. Part I: Regular Papers . Feb2015, Vol. 62 Issue 2, p366-375. 10p. - Publication Year :
- 2015
-
Abstract
- This paper presents a 10-bit single-ended SAR ADC suitable for multi-channel neural recording. The proposed ADC introduces several power saving techniques to boost the energy efficiency. The ADC is built with on-chip common-mode buffer for input tracking, which is reused as the pre-amplifier of a current-mode comparator during conversion. A small capacitor is inserted between the amplifier and the capacitive DAC array in order to reduce the capacitive load on the amplifier. A split capacitor array with dual thermometer decoders is proposed to reduce the switching energy. Implemented in 0.13-\mum CMOS technology, the ADC achieved a maximum differential nonlinearity (DNL) of -0.33/+0.56 LSB, maximum integral nonlinearity (INL) of -0.61/+0.55 LSB, effective number-of-bits (ENOB) of 8.8, and a power consumption of 9-\muW. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15498328
- Volume :
- 62
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Circuits & Systems. Part I: Regular Papers
- Publication Type :
- Periodical
- Accession number :
- 100761180
- Full Text :
- https://doi.org/10.1109/TCSI.2014.2360762