EXHIBIT 99.1
TO
SCHEDULE 13D
JOINT FILING AGREEMENT
The undersigned persons agree and consent to the joint filing on their behalf of
this Schedule 13D dated July 13, 2010 in connection with their beneficial
ownership of Advanced Analogic Technologies Incorporated, and any amendments
thereto. Each of Ameriprise Financial, Inc. and Columbia Management Investment
Advisers, LLC authorizes Xxxxxxxx Spectrum Focus (Master) Fund to execute the
Schedule 13D to which this Exhibit is attached and make any necessary amendments
thereto.
Ameriprise Financial, Inc.
By: /s/ Xxxx X. Xxxxx
---------------------------------
Xxxx X. Xxxxx
Director - Fund Administration
Xxxxxxxx Spectrum Focus (Master) Fund
By: /s/ Xxxx Xxxxxxx
---------------------------------
Xxxx Xxxxxxx
Authorized Person
Columbia Management Investment
Advisers, LLC
By: /s/ Xxxx Xxxxxxx
---------------------------------
Xxxx Xxxxxxx
Vice President and Assistant
Secretary
