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Many kinds of test and measurement systems, e.g. arbitrary waveform generators will require DC coupled DAC outputs. The portfolio of major instrument vendors can tell about state-of-the-art.
Personally, I have implemented systems up to 16 Bit / 500 MSPS. Other than for a communication application, you don't necessarily require the full effective bitwidth at high frequencies. But you want precise high speed waveforms in time domain and high amplitude resolution at lower frequencies. That means, you can e.g. afford to generate the DAC clock from a FPGA, which would be incredible in the RF world.
Amplifiers are often CFA or fully differential types.
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Thanks!
Cheers,
Dave
Honored Contributor
