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Forum Post: RE: ADS1298ECGFE-PDK: Getting Spikes in Between Data which capturing data with MCU

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Hi Ryan, As you said WCT is Negative input pin for V1-V6 Channels. So we are connected ground at WCT and applying sine wave input at INxP (V6 = Ch1). You can see Below image I have tried to explain our input applying sequence through schematic. When we do this same connections with EVK kit we are able to capture sine wave from the base level zero, but when we apply same connections with our MCU board we have captured this: But when we short WCT Pin and Read data, we get the Sine wave with shifting with EVK kit and MCU board as well. As shown in below image. And when we collect data with RDATAC command we are able get noisy data with the base line zero. But with RDATA Command noise is removed but the data is shifted. Please help me figure it out.

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