## A 12-Bit 200-MHz CMOS ADC

Citations: | 2 - 0 self |

### BibTeX

@MISC{Sahoo_a12-bit,

author = {Bibhu Datta Sahoo and Behzad Razavi},

title = {A 12-Bit 200-MHz CMOS ADC},

year = {}

}

### OpenURL

### Abstract

Abstract—A pipelined ADC incorporates a blind LMS calibration algorithm to correct for capacitor mismatches, residue gain error, and op amp nonlinearity. The calibration applies 128 levels and their perturbed values, computing 128 local errors across the input range and driving the mean square of these errors to zero. Fabricated in 90-nm digital CMOS technology, the ADC achieves a DNL of 0.78 LSB, an INL of 1.7 LSB, and an SNDR of 62 dB at an analog input frequency of 91 MHz while consuming 348 mW from a 1.2 V supply. Index Terms—Adaptive systems, blind least mean square (LMS) calibration, low-gain op amp, nonlinearity correction, pipelined analog-to-digital converter. I.