Lpc1769 adc glitch problem

sukrubahadir — Mon, 20 Jun 2016 04:27:55 GMT

Hello,

I have a problem with lpc1769's adc. I am trying to sample 10 hz sine wave. But there are a lot of glitches at adc Output. I try to filter adc Output for use the lpc1769's adc but it doesnt work. When ı Search this problem in the internet, some People says there is a internal hardware problem. Dou you have any Solution about this problem ? İf there is a internal hardware problem and there is no Solution for this problem, ı want to Hear that from nxp. By the way , i attach the lpc1769's adc Output for the 10 hz signal.

Thanks for your answers

Re: Lpc1769 adc glitch problem

lpcxpert — Mon, 20 Jun 2016 11:18:50 GMT

Hi all,

this problem is now confirmed in the latest ERRATA of the LPC1769.

Please have a look at ADC.3

PS: There is no real workaround. The only thing that can be done to minimize the impact is a very good PCB design on the analog side.

Regards,

Peter

topic Lpc1769 adc glitch problem in LPC Microcontrollers

Lpc1769 adc glitch problem

Re: Lpc1769 adc glitch problem