The dollar rose on Monday amid anticipation of improved U.S. sales data which could hasten moves by the country's central bank to wind down its stimulus programme.
The euro slipped against the dollar, vulnerable to re-emerging worries about both core and peripheral euro zone economies.
Gains in the U.S. currency were muted, however: market participants refrained from aggressively betting on further dollar strength ahead of Fed chief Ben Bernanke's congressional testimony on July 17-18, which will be closely watched for more clarity on the central bank's stimulus-easing plans.
The dollar was up 0.3 percent on the day against the basket of currency at 83.189, recovering from last week's low of 82.418. Support was at its 100-day moving average around 82.665. The greenback could take further cues from U.S. retail sales data due at 1230 GMT.