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LMP91200 - input voltage

vojtech svab
Prodigy 10 points
Other Parts Discussed in Thread: LMP91200

Hello,

I would like to use LMP91200 for measuring input voltage of +-2000mV at Vdd=3.3V and Vref=3,3V.
In Datasheet is written, that voltage between any two pins must be in range  from -300mV to VDD+300mV, is this information valid for INP pin as well? So that would mean, that I can connect to INP pin voltages only in range from -300mV to 3600mV, is it right?

If I set VCM to 7/8Vref, so I would have on VCM pin 2,89V. When I connected -2000 mV to INP pin, so I would have 890mv on VOUT pin. So that means, that I can measure minus voltage as well, is it correct?

The question.. Can I connect to INP pin (at VCM at 1/8Vref=0,43V) voltage -2000mV? I know, that on VOUT pin would be 0 mV, but I do not know, if it is allowed by TI.

Thanks for reply