> Yes, the DAC+reference is challenging and one way to go may be the > coarse+fine approach to avoid large (18bit and beyond) DAC. My last GPSDO > has an 18bit DAC but now I'm thinking to try the 8bit digital pot + 16bit > DAC op-amp combined. The reference can't be overlooked anyway.
Be careful, there is no free lunch. If you use a pair of DACs, the stability of the coarse DAC needs to be evaluated relative to the bottom bits of the fine DAC. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
