I have a medical customer that loves the noise performance of the AD5780.
However, they require 8 channels and are looking for Quad and Octal Equivalents with sub 10nV/rtHz or similar spectral noise density.
I have found several single channel voltage output/serial input DACs similar to the AD5780 with sub 10nV/rtHz spectral noise density, but no quads/octals at this point.
Here’s a couple I found with excellent specs and high channel count:
AD5664: 2.7 V to 5.5 V, 450 µA, Rail-to-Rail Output, Quad, 16-Bit nanoDAC®
AD5668: Octal, 16-Bit, SPI Voltage Output denseDAC with 5 PPM/°C On-Chip Reference
However, the nanoDAC and denseDAC families tend to be more in the 120nV/rtHz spectral noise density range.
Am I overlooking a part with higher channel (2 or more) count and similar noise performance to the AD5780?
Thanks in advance for your help.