Hi Sir
How can I calculate the real ADS125H02 samping-rate and data rate?
I used 7.3728MHz external clock, configered the register as follower.
writeSingleRegister(REG_ADDR_MODE1,MODE1_CHOP_ON | MODE1_CONVRT_CONTINUOUS | MODE1_DELAY_50_uS);
writeSingleRegister(REG_ADDR_MODE0,MODE0_DR_25600_SPS);
The nDRDY pin signal is about 4kHz.
Best Regard
Kai Yu
Hi Kai,
You can actually use the ADS125H02 online calculator to determine the conversion time for your settings. The link is here.
I have copied a screenshot from this tool as shown below. With chop mode = on, delay = 50us, and 25.6kSPS data rate, the first conversion latency is 0.52 ms, while second and subsequent conversions on the same channel take 0.25 ms. This does not account for any error in your clock signal, and is a good estimate.
-Bryan
