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LM2903: Difference between LM193DR, LM293DR and LM2903DR

Part Number: LM2903
Other Parts Discussed in Thread: LM193, LM293

Hi team,

Our assigned customer considers to use LM193DR or LM293DR instead of LM2903DR due to supply issue. I have questions about this.

1) Are these have same die? Just a difference at test process and qualification process?

2) What is the difference of characteristics other than the absolute temperature range?

Best regards,