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Inverter-based pseudo-flash ADC with low power consumption

 Morozov D.V.
 Pilipko M.M.
 Piatak I.M.
Date of publication

 An inverter-based pseudo-flash ADC is presented. CMOS inverters are used instead of a reference ladder of well matched resistors and comparators to reduce power consumption of the ADC. Influence of temperature and technology process variations on the inverters threshold voltages is considered. The ADC occupies 60120 um2 on the chip. The results of ADC chip measurements in UMC 180 nm CMOS technology showed that sampling rate is 100MSps, power consumption is 1,9 mW. Maximal DNL/INL are 0.6 LSB and 0.9 LSB respectively, the FOM is 0.63 pJ.
 flash ADC, CMOS inverter, priority encoder, power consumption
Library reference
 Morozov D.V., Pilipko M.M., Piatak I.M. Inverter-based pseudo-flash ADC with low power consumption // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2014. Proceedings / edited by A. Stempkovsky, Moscow, IPPM RAS, 2014. Part3. P. 25-28.
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