A 2.6 mW 6 bit 2.2 GS/s Fully Dynamic Pipeline ADC in 40 nm Digital CMOS

作者：Verbruggen Bob^*; Craninckx Jan; Kuijk Maarten; Wambacq Piet; Van der Plas Geert

来源：IEEE Journal of Solid-State Circuits, 2010, 45(10): 2080-2090.

DOI：10.1109/JSSC.2010.2061611

• Analog-digital conversion
• calibration
• CMOS analog integrated circuits

A 2.2 GS/s 4 x -interleaved 6b ADC in 40 nm digital CMOS is presented. Each ADC slice consists of a 1b folding stage followed by a pipelined binary-search sub-ADC using dynamic nonlinear amplifiers for low power consumption and high speed. The folding stage samples the input, removes its common-mode component and rectifies the differential voltage. The pipelined binary-search sub-ADC leverages threshold calibration to correct for amplifier and comparator imperfections, which allows the use of inherently nonlinear dynamic amplifiers. The prototype achieves 31.6 dB SNDR at 2.2 GS/s with a 2 GHz ERBW for 2.6 mW power consumption in an area of 0.03 mm(2).

• 出版日期2010-10