Hi,
I am trying to read the pressure sensor output which is a 2-wire 24vdc powered loop and convert it to 0-5Volts for a MCU to read into its ADC circuit.
I have experimented with the simple series Voltage Drop (ie 1% accuracy type). The output varies quite a lot. The accuracy is not acceptable.
The ic RCV420 has also been ruled out due to cost, delivery factor, dual PSU rail +ve -ve issue(spell: cost).
Any other cheap and accurate way?
-Mcuman (1st post)
I am trying to read the pressure sensor output which is a 2-wire 24vdc powered loop and convert it to 0-5Volts for a MCU to read into its ADC circuit.
I have experimented with the simple series Voltage Drop (ie 1% accuracy type). The output varies quite a lot. The accuracy is not acceptable.
The ic RCV420 has also been ruled out due to cost, delivery factor, dual PSU rail +ve -ve issue(spell: cost).
Any other cheap and accurate way?
-Mcuman (1st post)