Thanks jbartos
I have looked through the articles except last one. Really good information in Linear Tech An.40. I am working with signals less than10uV and a filter noise is the problem. Now I need LP filter (at least 8- order) with adjustable cut-off frequency and Switched C filter perfectly...
Does anyone have experience in application of the switched capacitors filters for signals with micro Volts amplitude and frequency 5 to 100 Hz. I would be happy to hear any ideas and opinions.
Thank you