Two internal resistors allow configuring a high-speed op amp as an instrumentation amplifier.
http://www.edn.com/archives/1994/091594/19di2.htm
Very high frequency instrumentation amplifier based on video-difference amplifier.
http://www.edn.com/archives/1994/051294/10di7.htm
You can combine an instrumentation amplifier and an inexpensive CMOS op amp to get the better of two worlds: the precision of a bipolar instrumentation amp and the5V single-supply operation of the CMOS op amp. The characteristics of such a circuit depend
http://www.edn.com/archives/1994/030394/05di2.htm
Extends CMRR Frequency Range 10 Times.
http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=1506
National Semiconductor Application Notes.
http://www.national.com/ms/LB/LB-1.pdf
National Semiconductor Application.
http://www.national.com/ms/LB/LB-21.pdf
Shows the classic implementation of an integrator. The circuit has two properties that may be undesirable in same applications: It necessarily inverts, and it requires a split-supply or midsupply reference.
http://a330.g.akamai.net/7/330/2540/20020911135951/www.edn.com/contents/images/91902di.pdf