This　paper　proposes　an　adaptive　calibration　technique　for　sample-time　mismatches　in　a　two-channel　Time-Interleaved　Analog-to-Digital　Converter　(TI-ADC).　The　correction　technique　is　simple　and　is　easy　to　hardware　accomplish.　The　estimated　structure　employs　a　Hilbert　transform　filter　and　a　low-pass　filter　to　estimate　the　error　caused　by　sample-time　mismatch.　The　estimation　and　correction　structure　consists　of　a　feedback　loop,　which　can　tracks　and　corrects　the　timing　mismatch　in　real　time.　A　two-channel　TIADC　prototype　with　14-bit　resolution　and　500-MHz　aggregate　sampling　rate　was　built　to　verify　the　proposed　correction　method.　Simulation　result　shows　that　when　the　input　signal　bandwidth　is　limited　to　the　Nyquist　frequency,　the　SFDR　can　be　improved　from　29.83dB　to　82.40dB,　the　SNR　can　be　improved　from　34.5279dB　to　80.3617dB.　©　2017　IEEE.