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MSP430F67791 SD24 input Buffer

kyt
Expert 2355 points


Hi,

Input impedance of SD24 is 400kohm in case of Diffential input in datasheet.

 

This 400kohm is Fig29-5

Figure 29-5. Analog Input Equivalent Circuit

http://www.ti.com/product/jp/MSP430F67791

1) Is 'F67791 implemented Buffer amp as below Fig.29-5?

2)Is Input impedance (=400kohm in the D/S)  equal to buffer amp input impedance?

best regards,

kyt

  • 0
    Guru 227245 points
    The comment in the posted schematics reads "see the device-specific data sheet". I suggest following this recommendation. Does the data sheet tell about buffered inputs or not? If not, then not. :)
    Hint: nothing in the datasheet indicates that there could be input buffers.
    This also makes question 2 void.

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