As a one of our project Implementation, we planned to use ref102
So, could you please suggest the reference circuit with component details including Isolation transformer feedback resistor configuration if any
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As a one of our project Implementation, we planned to use ref102
So, could you please suggest the reference circuit with component details including Isolation transformer feedback resistor configuration if any
Hi Rajewaran
Can you please provide more detail about your project on why reference is needed . Also why you need isolation?
Regards
Trailokya
Rajeswaran
Thanks for the detail. Output pin of the REF102 supports 10mA current . You can add have a PNP transistor as shown in figure 7B (page 8) to improve the load.
May I know what is the total load current you need?
Regards
Trailokya
Hi Rajeswaran
The output for REF102 is 10V. Do you mean ADC power supply or the refernce input for ADC ? May I know which ADC you are using?
Regards
Trailokya
This 10V is going to load cell as a supply voltage and we are returning back the signal through the ADC ADS114.
Hi Rajeswaran
Yes, this reference can be uses this with ADS114 as REFP and REFN input as the maz reference input can be upto AVDD. Please make sure that you take the trace directly from the REF pin and GND pin of the reference to ADC to avoid IR drop. This ADC offers internal buffer so the path will be highZ.
Regards
Trailokya