In July 2002, EDN Network published an article by Mike Irwin on the application of op-amps to linearise the response of a voltage controlled attenuator built around the Analog Devices SSM2164. In September 2003 Phillip Gallo published a design for a Dual LIN/LOG VCA utilizing this design idea.
The ASM316 realises that design in a EuroSynth module
ASM316 Datasheet and Build Guides