Hi All
I had a quick query about the use of external ADC's connected to a uC via SPI/I2C vs using on board ADC's on a uC. Would using external ones located right near the analogue signal provide a cleaner ADC conversion, also would this effect the speed or reading in anyway, or would having a long track that goes to an ADC pin on a uC be slower and more prone to noise?
I also had a question about sampling a voltage from a current sensor that has a bandwidth of 400kHz to filter this what kind of cut off frequency should I use to remove noise from this signal (voltage is about 5V max)
kind regards
Art
I had a quick query about the use of external ADC's connected to a uC via SPI/I2C vs using on board ADC's on a uC. Would using external ones located right near the analogue signal provide a cleaner ADC conversion, also would this effect the speed or reading in anyway, or would having a long track that goes to an ADC pin on a uC be slower and more prone to noise?
I also had a question about sampling a voltage from a current sensor that has a bandwidth of 400kHz to filter this what kind of cut off frequency should I use to remove noise from this signal (voltage is about 5V max)
kind regards
Art