Dinamovist
Junior Member level 1
Hi Gentlemen,
I have a question that I found no answer yet.
In a normal bicmos process I want to match 2 poly resistors let's say better than 0.05%. According to the process data is almost impossible to get there only by increasing the size (not taking into consideration second order effects). It
So without drawing them impossibly big, and without trimming is there any method to get better matching?
Let's say second order matching between pairs ?
I'm open to experiment anything. It is just for a simple resistor divider but must be very accurate. What is your experience with this sort of circuits ?
Thank you.
I have a question that I found no answer yet.
In a normal bicmos process I want to match 2 poly resistors let's say better than 0.05%. According to the process data is almost impossible to get there only by increasing the size (not taking into consideration second order effects). It
So without drawing them impossibly big, and without trimming is there any method to get better matching?
Let's say second order matching between pairs ?
I'm open to experiment anything. It is just for a simple resistor divider but must be very accurate. What is your experience with this sort of circuits ?
Thank you.