XC221A series for can input/output RAIL RAIL work T0 - - CMOS operational amplifier. Working voltage single light of power 1.2 V 10V and positive and negative power to the plus or minus 0.6 and 5.0 V. By XC221 25 SOT super-mini encapsulation, especially suitable for various portable equipment use. url http://www.torex.co.jp/chinese/products/pro08/index.php