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

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.