A 66dB DR 1.2V 1.2mW single-amplifier double-sampling 2/sup nd/-order /spl Delta//spl Sigma/ ADC for WCDMA in 90nm CMOS
2005
A single-amplifier double-sampling second-order /spl Delta//spl Sigma/ ADC with 5-level quantization is implemented in 90nm CMOS. To alleviate the capacitor mismatch issues in double sampling techniques, a single capacitor method is introduced, achieving 63dB peak SNDR and 66dB DR in a 1.94MHz bandwidth while consuming 1.2mW from a 1.2V supply.
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