A 8-bit SAR ADC using current mode approach for bio-medical applications
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Date
2014
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Publisher
IEEE
Abstract
This paper deals with the design of a SAR-ADC with 8-bit resolution suited for bio-medical application. The design of the key components of the SAR ADC namely, DAC, Comparator and Sample and Hold circuit (S/H) has been carried out using current mode approach with the DAC operating at sub-threshold regime. The input current range is 10nA to 2.57μA with 10nA as the LSB. The circuit has been designed in UMC 180nm technology Twin-Well Process.
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Keywords
EEE, SAR ADC, Current Mode Design, Sub-Threshold Operation of DAC, Current Comparator, S/H Circuit