After staying subdued during the Asian and European sessions on Monday, the U.S. dollar slipped into the red in the New York session, and continues to trade weak as bond yields dropped.
Also, traders look ahead to some key U.S. economic data, and the European Central Bank's monetary policy announcement due this week.
The dollar index dropped to a low of 105.52 but has edged up a bit to 105.62, still trailing its previous close by about 0.52%.
Against the Euro, the dollar has weakened to 1.0669 from 1.0596. The dollar is trading at 149.69 yen, down marginally from the previous close.
Against the Aussie, the dollar has eased to 0.6334 from 0.6315. The Swiss franc firmed to 0.8911 a dollar from 0.8922.
The dollar is trading at C$1.3693, firming from C$1.3739, but still remains in negative territory.
