I'm trying to access AD support for missing parameter in the datasheet for AD8539 op-amp.
The answer was to ask first here.
Anybody to know what is the value of the input current density for AD8539?
Hi Krasimir Kostadinov,
Let me get back to you on this.
Upon gathering the data for the AD8539, it seems that it really doesn't have a current density parameter.
May I know the nature of your application? I would recommend using a newer product like the ADA4528. It has a much lower offset voltage and noise voltage density than the AD8539.
If you need any more help. Don't hesitate to ask.
Thanks for the feedback!
I'm looking for ADC front end (24 bits) and I need low bias, low (Voltage and current) noise buffer op-amp.
Suggested ADA4528 have bigger Ibias which will be a problem for large input resistance. Otherwise, the voltage noise is really good!
Thanks for the suggestion!
You could also look into the ADA4051. It has a comparable Ibias to the AD8539, but with a slightly higher voltage noise, and voltage noise density. May I know your frequency of operation?
The frequency is DC-10Hz.
ADA4051 is a good candidate. Thanks for the suggestion!