Hi TI team,
In ADS1262 does all the filter provide 50Hz and 60Hz rejection and for what data rates.
Section 9.3.10(Pg 43)
"The FIR filter provides simultaneous rejection of 50-Hz and 60-Hz power-line frequencies with data
rates 2.5 SPS through 20 SPS with single-cycle settled conversions."
Section 184.108.40.206.1(Pg 46)
"The 50-Hz or 60-Hz fundamental
frequency and harmonics are suppressed by increasing the second-stage filter order,"
Again in the same page
"As shown in the plots, the best 50-Hz or
60-Hz rejection is provided by the sinc4 order, but has longer filter latency compared to the sinc1 order."
Section 220.127.116.11 50-Hz and 60-Hz Line Cycle Rejection
"If the ADC connection leads are in close proximity to industrial motors and conductors, coupling of 50-Hz and
60-Hz power line frequencies can occur. The coupled noise interferes with the signal voltage, and may lead to
inaccurate or unstable conversions. The digital filter provides enhanced rejection of power-line coupled noise for
data rates of 60 SPS and less."
Its littlebit confusing. Can anyone clarify.