The ADAS1000 contains different modes of operation, deciding which to use can be a bit confusing, here's a little guidance and also some example calculations in attached excel sheet (see below)
Analog Lead mode
- use for typical ECG lead configuration, creates the analog lead up front before digitization in the ADC, generates LEAD I/II/III and the V wrt WCT
- has slightly lower noise performance than digital lead mode
- Preferred mode for normal ECG applications
Digital Lead mode
- use for typical ECG lead configuration. Each channel is digitized by ADC and the lead is calculated after the ADC
- slightly higher noise performance than digital lead mode
Electrode mode
- use where need to digitize each input individually and not interested in a lead measurement
- Each channel is digitized wrt VCM_REF
