AD539
Hi
I would like to build a very good programmable gain amplifier going from 10kHz to 10MHz with minimum phaseshift and minimum gain-error. I think the AD539 is a good candidate - but what is its error? According to Analog Devices selectiontable the AD835 has less error - but when comparing the datasheets the AD539 looks better. The AD539 looks older and cheaper - how come?