I am developing a battery management system (BMS) using the battery pack monitor, ADS131B26-Q1.
I need to measure the battery pack current using a shunt resistor with very high accuracy and resolution.
My requirements are the following:
- Shunt value: 50μOhm
- Update rate: 1ms
- Resolution: 1mA
- Noise: 20mARMS
- Measurement range 0A to 30A: Offset error ≤30mA
- Measurement range 30A to 1000A: Offset error ≤30mA, relative error ≤0.1% (excluding the error of the shunt)
- Temperature range: -20°C to +60°C
Could you please help me to analyze if the ADS131B26-Q1 can meet those requirements?