Other Parts Discussed in Thread: , LM27761
Hi Experts,
Our customer has some doubts about ADS1298. Can we ask you some help?
In particular, he would like to know what is the current at the input that he should use (he want to realize a portable ECG). ECG is for Electrocardiogram.
He can't find anything on the datasheet, only the maximum current (10mA).
Is it the current at the power pin or at each channel?
Do you also recommend a particular LDO or Voltage switching regulator to use for the layout?
Also, he would like to know how to choose the right power supply. What’s the difference between +-2.5 V or +-1.5 V? He want to use a bipolar supply Configuration. What’s the impact on VREF and what the best way to choose VREF?
His application will be portable, so he will use batteries
Please advise. Thank you.
Best regards,
Gerald