Search You searched for “AD645AH” Filters Filters Product Categories Show More Resources Data Sheet 1 Technical Documentation 1 Show More Industry Solutions Show More Tools and Models Technology Solutions Show More Site Section Resource Library2 Result Type Forum Reply2Forum Thread1Show More Groups, Forums & Libraries Operational Amplifiers3Show More Author aai-inc1krisf2Show More Tag Results on Analog.com 3 Results on EngineerZone 3 Results on Analog.com 3 Relevance Relevance Oldest First Newest First Sort by AD645: Low Noise, Low Drift Fet OP Amp Obsolete Data SheetObsolete Data SheetPDFAD645: Low Noise, Low Drift Fet OP Amp Obsolete Data Sheet770 kBAD645ObsoleteProductProductLow Noise, Low Drift FET Op Amp PDFDatasheetDocumentationAsk the CommunityMilitary Part Cross-Reference GuideCross Reference GuidePDFMilitary Part Cross-Reference Guide29 kB <<<1>>> Results on EngineerZone 3 AD648AH obsolete date and suggested replacement part?Forum ThreadAnswered Operational Amplifiers07 July, 2017Does anyone have the above information? Please advise. RE: AD648AH obsolete date and suggested replacement part?Forum ReplyOperational Amplifiers20 July, 2017Hello Hunter, The AD648AH is no longer available. We only offer the AD648 in grades J and K. The J grade should have the same performance as the A grade but has an operating temperature range of 0 to 70degC. May I request again for what you are looking for … RE: AD648AH obsolete date and suggested replacement part?Forum ReplyOperational Amplifiers12 July, 2017Hello, I will check with the product owner regarding the information you need. I will get back to you. What application are you working on? I would like to make a recommendation on a newer part, but I would need to know what specific parameters you are looking for or … <<<1>>>