A 240-mW 2.1-GS/s 52-dB SNDR Pipeline ADC Using MDAC Equalization
Autor: | Chun-Ying Chen, Shauhyuarn Sean Tsai, Chun-Sheng Huang, Wenbo Liu, Tianwei Li, Loke Kun Tan, Bryan Juo-Jung Hung, Steven T. Jaffe, Jiangfeng Wu, Hung Vu, Wei-Ta Shih, Binning Chen, Lin He, Hing T. Hung |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | IEEE Journal of Solid-State Circuits. 48:1818-1828 |
ISSN: | 1558-173X 0018-9200 |
Popis: | This paper introduces multiplying digital-to-analog converter (MDAC) equalization, a digital correction technique for pipeline ADCs that corrects MDAC gain, settling, and other dynamic errors using successive digital FIR filters operating on sub-ADC output samples. This technique reduces the required MDAC residue amplifier (RA) bandwidth relative to the sampling frequency, thereby reducing ADC power. MDAC equalization is demonstrated in a 240-mW 2.1-GS/s ping-pong pipeline ADC in 40-nm CMOS where MDAC RA power is reduced from 175 to 53 mW by 70%. The ADC achieves 58 dB SNR and 52 dB SNDR. |
Databáze: | OpenAIRE |
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