I am redesigning a product I made almost 12 years ago that uses the quad OP484FS op-amp for a High Voltage / High Current Power metering front end.
I am hoping to find something that is potentially better or as good but LESS expensive.
My primary concerns are linearity, SNR, Harmonic Distortion. I will be sampling the measurments with AD1974 ADC's. My AC signals are 40Hz to 2Khz
I need to reduce the cost of the product, but when using the AD1974 ADC I need to produce a differential input which will require an additional op-amp than I am currently using on my single ended sampling.
I am running the OP484FS with 0 and +5v rails.
I would like to stick with a quad op-amp.
Thank you very much for your suggestions,