i am interfacing mcp3551 with 89c51. i have the problem that the count is not stable. i want the header file for mcp3551 with 89c51. please help me, its urgent.........
thanks dear for ur reply. ok i have got the required software bug. but still my count is not stable.now can anyone suggest me any specific circuit through which i can get low noise. waiting for ur reply.....
"can anyone suggest me any specific circuit through which i can get low noise."
"this requires low-noise, high-precision, careful analogue design - that's not something that can be rushed!"
So, NO; nobody can just give you a quick, simple, specific, answer - it is a matter of skilled, careful, design.
Have you checked the Microchip website for design guidance?
Also look at the sites of other ADC manufacturers for their guidance - the techniques will be generally applicable.
And remember: it has nothing to do with Keil software tools!
www.8052.com/faqs.phtml
thanks dear for your reply, i have designed the circuit, from which i am geting the count different of about 5 to 10. i require 5 lakh count from ADC. i have used amplifier with 20 gain. now my input to the amplifier is about 2 to 5 mVolt. if i increase the gain noise problem comes and my count starts running. so can u help me to find a way to get 5 lakh count. waiting for ur reply....
Again!
Have you checked the Microchip website for design guidance? And the sites of other ADC manufacturers? And the sites of low-noise, high-precision linear IC specialists?
Do you have a decent textbook on analogue electronics?
Note that none of this has anything to do with Keil software tools - its all about analogue electronics!
do you have separate analog and digital grounds? do you ...?
read the references you have been give and FOLLOW THEM
Erik