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But particularly the high end DevKits won't look bad with a state-of-the-art DC capable interface.
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What would you suggest as a state-of-the-art DC capable interface?
These DACs are current output devices, so you'd need a wideband current-to-voltage circuit involving probably a current-feedback op-amp (CFA) or voltage-feedback op-amp (VFA) op-amp circuit (or termination resistors and a buffer op-amp). You'd want good DC offset performance ... I vaguely recall CFAs aren't that brilliant in that area, but I haven't looked for a while.
What would be the maximum bandwidth of this DC coupled system, and what number-of-bits of dynamic range could the DAC generate?
What are examples of wideband DSP applications that involve DC (other than oscilloscope type applications)? The wideband applications I deal with all involve RF amplifiers, which are inherently AC-coupled. So I'm just interested in what others are doing.
Cheers,
Dave
Honored Contributor
