Hello @TM178 .
You are correct. The sample rate for each of those analog input channels is 12000/3 = 4kHz. The analog output channel is not included in the input channel-gain list.
Regards,
Fausto
Hello @TM178.
The DT9818 uses one 16-bit A/D converter for its analog input subsystem. However, since the DT9818 (as any other daq module) has other components and circuitry in the design, the 'effective number of bits' (ENOB) is 14.1 bits; as reported on Table 28 on page 123 in the DT9818 User's Manual.
https://www.mccdaq.com/PDFs/Manuals/UM9818.pdf
Your calculations would use 14.1 bits and a total range of 2.5 V (for the +/-1.25 V input range).
17560 discrete points & a 2.5 V range
(2.5 V) / (17560) = 1.4E-4 V/bit
For an acquisition, definitely use the smallest input range available on the DT9818 for your voltage level.
Regards,
Fausto
