Design for Testability That Reduces Linearity Testing Time of SAR ADCs
Tomohiko Ogawa, Haruo Kobayashi, Satoshi Uemori, Yohei Tan, Satoshi Ito, Nobukazu Takai, Takahiro J. YAMAGUCHI, Kiichi Niitsu · IEICE Transactions on Electronics · 2011
This brief paper describes design-for-testability (DFT) circuitry that reduces testing time and thus cost of testing DC linearity of SAR ADCs. We present here the basic concepts, an actual SAR ADC chip design employing the proposed DFT, as well as measurements that verify its effectiveness. Since the DFT circuit overhead is small, it is practicable.