Other Parts Discussed in Thread: REF3030,
Hi,
1. why it can accept AGND – 1.3(this value is in RECOMMENDED OPERATING CONDITIONS, not ABSOLUTELY MAXIMUM) at VAINxP and VAINxN? I mean, why it can accept negative voltage?
2. The external reference could only support 1.1V to 1.3V range? So it's impossible to use a 3.0V reference like REF3030 to expand it's full scale range?
3. If now the customer would like to measure a single ended voltage signal ranging from 0-2.4V, how can we adjust it to differential voltage signal VIN = VAINxP - VAINxN ranging from -1.2V to +1.2V which meet the FSR just right? Do we have recommended circuit?