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Forum Post: ADS124S08: Thermal pad connection in QFN package with negative VSS.

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Part Number: ADS124S08 Tool/software: Hi. My configuration: AVDD, IOVDD, DVDD 3.3V AVSS, AVSS-SW -1.2V Vref - external 3V Aincom - GND REFP0 - Ext Vref REFN0 - GND RECFOM - GND My concern is how to properly connect the Thermal PAD. Datasheet says - connect to VSS - but it doesn't look as the best option in this configuration. Could You please explain how should I Connect the PAD in this configuration?. VSS or GND? I want to measure analog signals from -1.2 to +3V with reference to GND. Is this configuration correct? Best Regards M.

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