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AD8347 Output Impedance

Question asked by Kevin.G Employee on May 6, 2010
Latest reply on Jun 26, 2017 by stanis

What is the output impedance of the AD8347s baseband amplifiers?  I thought I read somewhere that it had a relatively high output impedance, but I cannot find where I read it.  Also, what is the input referred noise?  The reason I ask is because if it is a relatively high impedance then I need to find a suitable differential amplifier to act as a buffer.  However, most of the differential amplifier datasheets I've seen use gain and feedback resistors of a few hundred ohms and I think I would need to use much higher resistor values.  Any recommendations on a diff-amp that can use higher gain and feedback resistors?