Single ended , differential end sensing of analog signal processing with ADS8684 IC radio frequency noise impact on analog values nearly its frequency range 167MHZ
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Single ended , differential end sensing of analog signal processing with ADS8684 IC radio frequency noise impact on analog values nearly its frequency range 167MHZ
Hi Rajani,
I'm not sure what your question is. ADS8684 can only support single-ended signal(bipolar and unipolar) and it does not support differential signal. Also, the signal frequency should be limited to be less than 15kHz because of internal LPF.
Regards,
Dale
Hi Sir,
Thank you for response.
I am actually interested to know on Analog current signal sensing pre end of ADC I have kept differential amplifier for signal boost up before feeding to ADC.
like that I have multiple differential amplifiers to process different analog signals , I am sensing low end based.
I have each sensor Output with respect signal return / Gnd, this Ground is common for all Analog sensor, that is only my signal return each & every sensor I have to take SIgnal return wire, or Taking common ground one end of Differential amplifier is better
How is the impact of taking Each sensor signal return wire / Making a common Ground on board
Kindly suggest, Where exactly I will face a problem with the above two conditions
Hi,
If your sensor output is differential, you may have to use ADCs which support differential input or use a conditioning circuit for differential ->single-ended conversion then feed the signal to ADCs. ADS8684 can not handle differential signal directly. However, if ADS8684 is preferred by you, a INA instrumentation amplifier may have to be used on each channel before ADC.I can not have a proper recommendation without any information (signal level and type, channels, speed per channel).
Regards,
Dale