MSP430FR2311: eCOMP resolution

Daniel Fang

Genius 11600 points

Part Number: MSP430FR2311

Hi,

What's the resolution of eCOMP? My customer want to compare two external input signal at 100mV difference. Thanks.

0 Gary Gao over 7 years ago

Hi Daniel

That can be work with 100mV difference.

You can just calculate the resolution of the eCOMP like this: Resolution=Voffset +Vhys ; Voffset means Input offset voltage, Vhys DC input hysteresis

the values you can refer to the msp430fr2311's datasheet

So the minimum can be 30 mV but the robustness is worse without the hysteresis.

Best regards

Gary

0 Gary Gao over 7 years ago in reply to Gary Gao

Hi Daniel

The operation mode is described in the UG like this

The speed mentioned before means the response speed which can be described as tpd

0 Daniel Fang over 7 years ago in reply to Gary Gao

Very helpful reply. Thanks.

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