i am using Adas1000 EVM board.
I am evaluating DC lead on/ off feature.
I have configured for GAIN 4.2 and in differential or Single ended ,vector mode.
I have Opened LK6 jumper and powering AVDD from J5. AVDD is 5V.
I am using Stream LOFF in the evaluation software.
When RLD not connected to body. LA and RA connected to body.
Lead on not detected.
When RLD connected to body, LA & RA connected to Body.
LA , RA lead on detected RLD lead on some times not detected sometimes RLD lead on detected.
When RLD connected to body, LA & RA & LL connected to body.
LA , RA and LL & RLD lead on detected.
when LA,RA,LL,RLD leads. when any of the electrodes except RLD such as LA/RA/LL is removed. electrode lead off is displayed along with that RLD lead off is also displayed.
I soldered 22M ohms RLD pull up resistors for LA RA & LL and repeated my trails with same configurations.
I observed LA,LL,RA always giving lead on.
Please help me regarding this. Only case 3 is good conditions.
In all the cases i have issues.