Analog Devices is also introducing the ADA4961 RF differential A/D converter driver amplifier that drives heavy loads to 1.5 GHz and beyond and achieves -90 dBc IMD3 performance at 500 MHz and -87 dBc at 1.5 GHz. Combined with very low output noise (6.8 nV/rtHz), the new amplifier delivers 133 dB/Hz SFDR performance at 1.5 GHz and sets a new benchmark for dynamic range vs. power consumed.

This new level of RF performance allows wideband RF GSPS converters to achieve their optimum performance with minimal limitations of the driver amplifier or constraints on overall power that typically result from GaAs amplifiers. The ADA4961 can easily drive 10- to 16-bit high-speed converters, and in many receiver applications, may eliminate the need for an anti-alias filter.

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