← 返回 JSSC 论文列表JSSC 2019第8期Data Converters65nmSAR ADC
A 12-b 1-GSs 315-mW Time-Interleaved SAR ADC With Analog HPF-Assisted Skew Calib
一款12位1GS/s时间交织SAR ADC，采用模拟HPF辅助校准技术
65.3dB SNDR, >70dB SFDR, 315mW功耗, 0.27mm²面积
时间交织ADCSAR ADC时序偏差校准参考ADC模拟HPF
▸时间交织四路250MS/s SAR ADC阵列
▸基于参考ADC的校准算法
▸模拟HPF辅助时序偏差校准
Abstract
This paper presents a 12-b, 1-GS/s ADC array,
realized by time-interleaving four 250-MS/s pipelined SAR ADCs,
with integrated on-chip reference voltage buffers. A reference
ADC-based calibration algorithm treats static nonlinearity, gain,
and offset errors in the array. Timing-skew errors between the
sub-ADCs are distinguished from those of the gain mismatches by
the assistance of an analog high-pass filter (HPF) for input slope
information and subsequently corrected by digitally controlled
delay