TIDUF13 November 2022 ADS117L11 , ADS127L11
The 20-VPP, 2-kHz sinusoidal inputs applied to ch1 as in the input range test, ch2 signal power is compared to ch1 signal power. The 20 VPP, 2 kHz is not pure and includes multiple high harmonics.
The ch1 signal level is ch1 is –2.8 dB as expected for full-scale input. While ch2 and ch3 signal levels are at –93 dB. These results indicate a cross-talk level below –90 dB.