INA215: Output oscillating at high temperature

Faizul Bacchus

Part Number: INA215
Other Parts Discussed in Thread: UCD3138

Hello,

My customer is using the INA215AIDCKR device and they have reported that the output of the device oscillates when the PCB temperature reaches about 90C.

Please see waveform and partial schematic. Note waveform is taken after the 10k resistor. I have asked customer what it shows across C510

Thanks

Faizul Bacchus

Doc1.pdf

over 4 years ago

0 Guang Zhou over 4 years ago

TI__Mastermind 27390 points

Hi Faizul,

Aside from what you already asked for, I would also inquire what other circuitry is connected to C511.

Regards, Guang

0 Loc Ngo over 4 years ago in reply to Guang Zhou

Prodigy 20 points

Hi Guang,

output of C511 is connected to ADC input of UCD3138, can you help us through email? We are located in Plano TX

gang.wang@us.abb.com

loc.ngo@us.abb.com

Thanks

Loc

0 Guang Zhou over 4 years ago in reply to Loc Ngo

TI__Mastermind 27390 points

Hi Faizul/Loc,

Per your request, this discussion is going offline and I’ll close this thread.

Regards, Guang

Amplifiers

Amplifiers forum

INA215: Output oscillating at high temperature