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LM2902: LM2902KPWR vs. LM2902KVQPWRQ1 electrical differences, common mode and differential input capacitance

Part Number: LM2902
Other Parts Discussed in Thread: LM2904,

Hi Team,

Can you please advise on the following?

- What electrical differences (if any) are there between LM2902KPWR vs. LM2902KVQPWRQ1? I don't see any specifically in the datasheet electrical tables. 

- Critical spec for my customer is common mode and differential input capacitance, can you advise on the values? I don't see in the datasheets. 


-Kevin Ginunas

  • Kevin,

    Most answer are buried in the data sheet or clearly explained in the application note. Design Guidelines for Devices with LM324/LM358 Cores

    1.4 Maximum Supply Voltage
    The default maximum supply voltage is 30 V; however LM290X devices have a 26 V maximum supply rating.
    The exceptions are LM2902 and LM2904 devices having a “V” in the suffix, which denotes maximum voltage
    up to 32 V. Two examples are LM2902KAVQDR and LM2904AVQDR. All devices with a “B” in the suffix have a
    maximum supply voltage rated at 36 V; examples are LM358BDR, LM2904BADR.

    The input capacitance will be the same for both. I don't have the data quickly available, but it is only a couple pF. 

  • Kevin, 

    Diff cap should be less than 1pF. There will likely be more diff cap on the application PCB than the op amp itself.