AK wrote: > Hi group. I'm designing an amplifier that should have a high common > mode rejection ratio, and resistor dividers are required on the > inputs. I'm trying to avoid a manual trimming step. Is there a > common error trend of the resistors in a chip resistor array such that > the resistance error between elements is commonly less than the > overall resistance tolerance? Often yes. Only the datasheet can tell you for sure for a particular model. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist