Just put your sensor output directly into pin 6 of the chip and the 8K2 resistor ,without the 470pF capacitor, and see what output voltage you're gettingSo I went ahead isolated the sensor + pull up resistor as per post#5 and here are the results. Im now thinking my voltage divider is a little too low. It cuts the reference voltage down to 0.5V. Im thinking I should use two of my 47K resistors to set this reference voltage to approximately 7.5V.
View attachment 196377
Sorry for the delay -Hello,
Try the values shown in the circuit below.
Nice! Glad you have it working.Sorry for the delay -
Thanks eT! I bought some more stable components, sized per your diagram and was able to get it working!
I am getting an output ripple that ranges about 0.2V which is a little too much so I will be playing around with the CL capacitor sizing and also RL sizing as I don't need the full range of 200Hz so I am going to adjust this down to 150Hz @ 10V by increasing RL.
Shout out to everyone else, as this whole Forum has been very helpful!
Here is my current circuit (attached a 50K resistor in series with RL and does not have the 5k POT as I can calibrate this in Labview)
View attachment 197482
View attachment 197481
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by Jake Hertz