SAR的一篇文章

caroline11

SAR ADC的有意思的分析
Abstract— A new method for switching the capacitors in the DAC capacitor array of a successive approximation register (SAR) ADC is presented. By splitting the MSB capacitor into b − 1 binary scaled sub-capacitors, the average switching energy of the array can be reduced by 37% compared to a conventional switching method. A formal solution of the switching energy in four different switching methods is included, and the equations are verified using HSPICE simulations of a 10b capacitor array in a 0.18µm CMOS process.