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LME49720: Pop-cone noise

Part Number: LME49720
Other Parts Discussed in Thread: LM4562

Hello OP-amp team,

We got 4pcs of customer return of LME49720 caused by pop-cone noise issue.

I mounted those devices on the test circuit which has 40dB gain (1kR and 100kR) at +/-12V power supply with shorted differential input node.

Pop-cone noise level at particular channel is about 5mVpp 10msec duration, it is not acceptable level on our customers audio equipment even this behavior is come from common bipolar transistor.

Our customer wants to know TI's pop-cone noise level specification of this low noise audio purpose OP-amp.