About AFE5809 TGC Common-mode voltage Input range?

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From datasheet afe5809 p8:

TGC Common-mode voltage (VCNTLP and VCNTLM) is given type 0.75V，Is there a range? and within this range will not affect analog front end performance。

thx!

over 9 years ago

0 Amy Schnoor over 9 years ago

TI__Mastermind 18275 points

We have received your question about the AFE5809 and hope to have a response back to you shortly.

0 Xiaochen (Sean)Xu over 9 years ago in reply to Amy Schnoor

TI__Expert 6040 points

Hi,

Please use 0.75V as nominal number. considering the 0 to 1.5V for VcntlM/P, we can’t make it less than 0.75V. higher than 0.75V is also not recommended due to conflicting internal circuit bias point. Of course, the device will be OK if you have some variation e.g. 10~20mV.

You can also use single ended VcntlP/M, i.e. VcntlM=GND. All datasheet specs were collected at VcntlM=GND.

Thanks!

Xiaochen

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About AFE5809 TGC Common-mode voltage Input range?