Other Parts Discussed in Thread: INA226, , INA237-Q1, INA238-Q1, INA229-Q1, INA228-Q1
Dear team,
We are designing a 4-20mA loop current measurement circuit. In TI E2E, we see IN219 can be better used for 4-20mA loop current measurement (2-wire system). Need to understand the following questions
1. The measurement can reach 12bit resolution.
2. What is the maximum measurement error?
3. Rshunt need not connect diode to prevent reverse connection. Still not needed.
4. What is the value of Rshunt, and the current measurement has high accuracy.
5. Whether the circuit needs to be connected with TVS diode to prevent the surge current from damaging the circuit. Need, then how to pick up. If you can recommend one. The loop power supply is 24V. Chip power supply is 5V