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PGA308EVM: PGA308 EVM Read Vin and Read Vout are not displaying correct values

Kanisius Kusumadjaja

Prodigy 20 points

Part Number: PGA308EVM

Hi there, I am currently using the PGA308EVM and am trying to test several gain values but am running into a problem where the Set Vin value is not being read properly by the software and USB DAQ. For example, I have Auto Vin Vdif set to 10m and Vcm set to 2.5. When I click Read Vin it is displaying -61.59m, and does not change when Auto Vin is changed. Could the ADC on the USB DAQ be faulty?

over 3 years ago

0 Luis Chioye over 3 years ago

TI__Guru 55466 points

Hi Kanisius,

I will need to get a hold of a PGA308EVM in the lab, and attempt to reproduce the issue.

I expect I will get back to you in a business day by Monday end of Day US time.

Thank you and Regards,

Luis

+1 Kanisius Kusumadjaja over 3 years ago in reply to Luis Chioye

Prodigy 20 points

I have resolved the issue. I connected JMP9 and JMP 10 to ADS- and ADS+. Also connected JMP6 to ADS1.

0 Luis Chioye over 3 years ago in reply to Kanisius Kusumadjaja

TI__Guru 55466 points

HI Kanisus,

Thank you for letting us know.

Kind Regards,

Luis