Part Number: ADS8684 Hello, My csutomer don't use AUX_IN/GND in their system and is asking me how to terminate them. I think just connecting AUX_IN and AUX_GND directly is enough, but is it also the best way for lower power consumption? They don't want…
Part Number: ADS8684 Hello, My customer would like to know ADS8684 DVDD current with 17MHz SCLK (max SCLK freqeuncy) condition. The below is from the datasheet. What SCLK frequency is used for this measuerement? It says "output=0000h". Does it mean the conversion…
Hi Vincent,
Ryan is on vacation now, so I will support you. The maximum SCLK frequency supported by ADS8688 is 17MHz. The command format is same for setting all ranges on all channels. Can you please let me know what code you got for the ranges/channels…
Part Number: ADS8684
SDI running at 15MHz. I get AD values from device, but I am not able to change GAIN.
After Reset (Hardware) I try to initialize device by sending gain (+/- 0.6125Vref) for chan0...3
Then I like to set AUTO_Chan to chan 0,1,2
…
Part Number: ADS8684 Hello,
Input lekage current is defined in the datasheet like the below.
Then my cusotmer is asking me where is R_IN in this fomula. Is this R_IN R_s in the below figure? Or other paramater?
Regards, Oba
Hello Obata-san,
Actually, it is possible for the directions to be different on each input since the AIN_nGND is connected to GND, so the AIN_nP input will see a different common-mode at the input.
The internal common-mode of the PGA is adjusted for each…
Part Number: ADS8684 Dear Specialists,
My customer is considering ADS8684 and has a question.
I would be grateful if you could advise.
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P.27 of the ADS8684 data sheet states that the reference voltage changes due to the thermal stress of reflow soldering…
Thanks, Bertrand. The schematic looks correct to me.
What is the voltage measured at the REFCAP pin? Is it the same as REFIO voltage?
If this is still an issue, can you tell us how many ADS8684 devices are affected?
Regards,
Ryan