Very low noise DAC


I need a low noise DAC for a precision low-frequency (<500Hz) application, resolution >= 16 bits, 3.3V, SPI

I am thinking of using the LTC6655BHMS8-2.5 as a reference, but trying to find a DAC that doesn't swamp its 400nVpp low frequency (0.1-10Hz) noise is difficult.

In your product selector guide the LTC2641 is shown as a low noise DAC but its datasheet doesn't provide much information on noise, what is its 0.1-10Hz peak-peak noise?

Is there a lower noise output part that you can suggest?

(The AD5780 has 1.1uVpp typical)

Many thanks,


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