SSM2166A Compressor/Limiter on a Chip AD Analog Devices SMD SSM 2166A

1 piece NOS, SSM2166A, made by ANALOG DEVICES, PREAMP, COMPRESSOR, SUSTAINER, LIMITER ON A CHIP in an SMD package.
Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/SSM2166.pdf