mrblueblue1234
Junior Member level 1
Hello everyone!
1.) I am using a digital potentiometer (POT) in my project and having a problem with the waveform being distorted through he part. But before I do anything I set the digital POT to ~1k and I measure the resistance through the POT with my multimeter and I measure about 1k. This is good but it is the DC resistance.
2.) But when I apply an AC signal ~230 Hz through the POT the waveform that I receive through the device is extremely distorted.
What I am expecting is a smooth uniform sinewave but the waveform looks something like this:
3.) If I remove the digital POT and replace with a physical through hole 1k resistor I get an excellent waveform that looks similar to the below image. I don't have a photo of the perfect waveform that I get but the below shows a representation of how it looks.
3.) There sees to be an issue when I apply an AC signal to this part. I was wondering if any one had some ideas of explanations or possible fixes?
This is the part number:
Datasheet:
Thank you for any ideas!
-MrBlue
1.) I am using a digital potentiometer (POT) in my project and having a problem with the waveform being distorted through he part. But before I do anything I set the digital POT to ~1k and I measure the resistance through the POT with my multimeter and I measure about 1k. This is good but it is the DC resistance.
2.) But when I apply an AC signal ~230 Hz through the POT the waveform that I receive through the device is extremely distorted.
What I am expecting is a smooth uniform sinewave but the waveform looks something like this:
3.) If I remove the digital POT and replace with a physical through hole 1k resistor I get an excellent waveform that looks similar to the below image. I don't have a photo of the perfect waveform that I get but the below shows a representation of how it looks.
3.) There sees to be an issue when I apply an AC signal to this part. I was wondering if any one had some ideas of explanations or possible fixes?
This is the part number:
Datasheet:
Thank you for any ideas!
-MrBlue