I need to build a ±5V voltage reference with a current output of at least 100ma (actually, the full working load in my design will be 55mA) based in the following diagram
Never mind the MAX865 (it's a single supply ±10V generator), I am going to replace it with simple 7812 and 7912 regulators connected to a switching ±15V power source. This way there will be far more power available than the meager 15mA the MAX865 is able to deliver.
I intend to boost the positive current output of the MAX6350 using the following technique.
The thing is that I just found out that the MAX400 has been discontinued, and I'm trying to find a good replacement for it. For that purpose, I'm considering using the LM7171. Although that chip has a much larger voltage offset than the MAX400, I'm under the impression that the 1K pot in the diagram is being used to adjust negative voltage output anyway.
Would the LM7171 be a viable replacement? Or would you suggest something else?
Thanks in advance for reading this post.
Never mind the MAX865 (it's a single supply ±10V generator), I am going to replace it with simple 7812 and 7912 regulators connected to a switching ±15V power source. This way there will be far more power available than the meager 15mA the MAX865 is able to deliver.
I intend to boost the positive current output of the MAX6350 using the following technique.
The thing is that I just found out that the MAX400 has been discontinued, and I'm trying to find a good replacement for it. For that purpose, I'm considering using the LM7171. Although that chip has a much larger voltage offset than the MAX400, I'm under the impression that the 1K pot in the diagram is being used to adjust negative voltage output anyway.
Would the LM7171 be a viable replacement? Or would you suggest something else?
Thanks in advance for reading this post.