Part Number: ADS1293 hi Team, customer doing the waveform test on the ads1293 evm (previously they used and tested with ads1291 there is a test in the regulation with DC -300mV triangle wave input, but ads1293 output waveform doesn't meet the 10% distortion requirement. ADS1293 EVM input triangle wave 6.25HZ / Vpp=0.5mV / DC offset= -300mV => FAIL. the requirement is pk-pk can not have 10% error or 50uV. output below with IN 1 = input signal, IN 2 = GND ADS1291 EVM input triangle wave 6.25HZ / Vpp=0.5mV / DC offset= -300mV => Pass. output below with IN 1 = input signal, IN 2 = GND Does the negative voltage signal input to the ADS1293 , require more filtering? or it needs a negative voltage reference to the IC like the ads1291 ? (1293 is build in reference right?) linearity and dynamic range requirement
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