hi everyone. im new at this forum
i want to ask about ADE7763 Vrms and Irms register value.
as i known when i read datasheet, the Maximum value between V1p-V1n and V2p-V2n is 0.5V peak, the maximum rms value can reach is 1868467d (0x1C82B3) in the IRMS register , and 1561400 (0x17D338) in the VRMS register
so to test it out, i use Analog Discovery 2 to generate the waveform to V1p-V1n, V2p-V2n pins. below is the result.
both V1p-V1n, V2p-V2n input = 100mv --> Vrms =329827 Irms =387625
both V1p-V1n, V2p-V2n input = 200mv --> Vrms =659837 Irms =775532
both V1p-V1n, V2p-V2n input = 300mv --> Vrms =989431 Irms =1163034
both V1p-V1n, V2p-V2n input = 400mv --> Vrms =1319889 Irms =1550859
both V1p-V1n, V2p-V2n input = 500mv --> Vrms =1649628 Irms =1938418
both V1p-V1n, V2p-V2n input = 600mv --> Vrms =1978903 Irms =2325707
both V1p-V1n, V2p-V2n input = 700mv --> Vrms =2308025 Irms =2713455
...
the more input voltage increase, the more Vrms, Irms increase. there are no limit here
Can someone points out where I'm going wrong?