Post Go back to editing

AD5220 goes to final position when I pull CLK low.

Category: Hardware
Product Number: AD5220

AD5220 goes to final position as soon as I pull CLK low. On power on everything is fine, its resistance is at 50 %. I got debounce circuitry in place. As soon as I open CLK, voltage there goes from 5 to 0 V and in same instance the resistance goes to final position. I assumed the entire point of the CLK is that with a push button I can click through the resistors one by one? Data sheet says it falling edge. Once its at sable 0 V there is no edge? Apart from it just goes from 5kOhm to 0 in an instance. Does there have to be a clock or can I increment at will (this is what push button suggests)?

The IC is purchased from Farnell, I would like to hope I did not get a cheap copy.

Parents Reply Children