Question
Why am I not achieving femtoampere performance from the ADA4530-1R-EBZ evaluation board?
Answer
One of the common reasons is contamination on the board. The effective insulation resistance of the board can be substantially degraded bycontaminants such as solder flux, body oils, dust or dirt. It is hence important to keep the board clean. Solvents such as isopropyl alcohol (IPA)are effective at removing the residue from solder fluxes and body oils. Mechanical abrasion also helps to remove the contaminants. The propercleaning procedure is outlined in UG-865.