Hi, Can I use a single voltage divider to apply a DC Offset to four op-amp inverting schmitt triggers ?
The four op-amps are provided by a single LM324 so common supply/ground. At the moment, a single stage of my circuit looks like this -
(image source - wikipedia - http://en.wikipedia.org/wiki/Schmitt_trigger)
I am using a potentiometer or r-r as a voltage divider to set a virtual ground on the inverting input. If I try to share this across schmitt triggers - will it work or will R1-R2 feedback into the divider and upset the common reference ?
Thanks for any help