Yes! now Google Analytics Integrates with AdSense

It isn’t available to all publishers yet (they’re rolling it out gradually) but if it is you’ll see an invitation in your Google AdSense admin area. see here

Come up with your own to discover how useful (and fun) new data can be:

* Discover untapped markets. Use the geographies report to determine which regions are under-represented in your site’s user base. Optimize your site’s content to attract more of these under-represented users.
* Drive high-earning traffic to your site. Use the 'Referring sites' report to determine where the users who are making you the most money are coming from. Focus your efforts on getting traffic from these sources.
* Delve deeper into AdSense reports. Use the visualization feature to look at trends in your site's AdSense performance over time, or by time of day.

Again, this feature is not yet available to all our publishers, but please keep checking your account for an invitation.