TY - GEN
T1 - A 5-bit 500-MS/s time-domain flash ADC in 0.18-μm CMOS
AU - Min, Young Jae
AU - Abdullah, Ammar
AU - Kim, Hoon Ki
AU - Kim, Soo Won
PY - 2011
Y1 - 2011
N2 - A 5-bit 500-MS/s time-domain flash ADC is presented. The proposed ADC consists of a reference resistor ladder, two voltage-to-time converter arrays, a time-domain comparator array and a digital encoder without sample-and-hold. In order to achieve low-power consumption with high conversion-speed and to enhance design reusability in terms of a highly digital implementation with more regular mask patterns, the time-domain comparison is devised in the flash ADC. The prototype has been implemented and fabricated in a standard 0.18μm CMOS technology and occupies 0.132mm 2 without pads. The measured SNDR and SFDR up to the Nyquist frequency are 26.6 and 35.1 dB, respectively. And the peak DNL and INL are measured as 0.43 LSB and 0.58 LSB, respectively. The prototype consumes 8mW with a 1.8-V supply voltage.
AB - A 5-bit 500-MS/s time-domain flash ADC is presented. The proposed ADC consists of a reference resistor ladder, two voltage-to-time converter arrays, a time-domain comparator array and a digital encoder without sample-and-hold. In order to achieve low-power consumption with high conversion-speed and to enhance design reusability in terms of a highly digital implementation with more regular mask patterns, the time-domain comparison is devised in the flash ADC. The prototype has been implemented and fabricated in a standard 0.18μm CMOS technology and occupies 0.132mm 2 without pads. The measured SNDR and SFDR up to the Nyquist frequency are 26.6 and 35.1 dB, respectively. And the peak DNL and INL are measured as 0.43 LSB and 0.58 LSB, respectively. The prototype consumes 8mW with a 1.8-V supply voltage.
KW - Analog-to-digital converter
KW - Flash converter
KW - Time-domain comparison
KW - Voltage-to-time converter
UR - http://www.scopus.com/inward/record.url?scp=84863057520&partnerID=8YFLogxK
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U2 - 10.1109/ISICir.2011.6131965
DO - 10.1109/ISICir.2011.6131965
M3 - Conference contribution
AN - SCOPUS:84863057520
SN - 9781612848648
T3 - 2011 International Symposium on Integrated Circuits, ISIC 2011
SP - 336
EP - 339
BT - 2011 International Symposium on Integrated Circuits, ISIC 2011
T2 - 2011 International Symposium on Integrated Circuits, ISIC 2011
Y2 - 12 December 2011 through 14 December 2011
ER -