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A 130 mW 100 MS/s Pipelined ADC With 69 dB SNDR Enabled by Digital Harmonic Distortion Correction

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2 Author(s)
Panigada, A. ; Dept. of Electr. & Comput. Eng., Univ. of California at San Diego, La Jolla, CA, USA ; Galton, I.

This paper presents a pipelined ADC with two fully integrated digital background calibration techniques: harmonic distortion correction (HDC) to compensate for residue amplifier gain error and nonlinearity and DAC noise cancellation (DNC) to compensate for DAC capacitor mismatches. It is the first IC implementation of HDC, and the results demonstrate that HDC and DNC together facilitate low-voltage operation and enable reductions in power dissipation relative to comparable conventional state-of-the-art pipelined ADCs. The pipelined ADC achieves a peak SNR of 70 dB and a -1 dBFS SFDR of 85 dB at a sample-rate of 100 MHz. It is implemented in a 90 nm CMOS process and consumes 130 mW from 1.2 V and 1.0 V analog and digital power supplies, respectively.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:44 ,  Issue: 12 )

Date of Publication:

Dec. 2009

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