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ADS1291 Current consumption

Sijo Samkutty
Prodigy 10 points
Other Parts Discussed in Thread: ADS1291, ADS1292R, ADS1292

Hi Team,

I am looking for complete power consumption details of ADS1291 in normal mode.

Is the supply current (Iadd and Idvdd) for ADS1291 given in the datasheet for 3V operation? I could see a row specifically mentioned for ADS1292/ADS1292R and ADS1291 in power dissipation (in page number 6 of the datasheet) but not for ADS1291.

If the supply current is same as mentioned 205uA (Iavdd), then the power dissipation for ADS1291 should be somewhere around 615uW (3V x 205uA)(for analog supply) right? Or should I reverse calculate the current based on the quiescent power dissipation which is given as 450uW?

Or could you please help me to get the real figures of Iavdd and Idvdd (3V operation) for ADS1291 (may be for the similar condition where part is characterized for) from the evaluation board.

What are the other current which I should consider for overall power dissipation (both analog and diigtal supply) of the part in Single Lead ECG application (other than for RLD).

By what amount my current consumption will increase by changing the throughput rate (higher than 500SPS).

Regards

Sijo