AD8531 Offset Voltage Min Typ

Hi Hari,

You can check AD8531's typical offset voltage in the Typical Characteristic Performance section in the datasheet page 6 figure 6 and 7. For your application of 5V supply, typical input offset voltage of AD8531 is along -6 to -4mV. Kindly see image below:

Hope this helps!

Regards,

Kristine

Hi Kristine,

Thank you very much.

I saw this curve, but I don't know how to interpret this curve.

The X-axis is offset voltage Y-axis is quantity.

If you don't mind could you please tell me how you get that range( -6 to -4mV)

Regards

HARI

Hi Hari,

We interpret this data by looking at the highest number of units and see what the offset voltage of that said no. of units. In this graph, the highest number of units which is more than 500 unit's offset voltage were ranging -6mV to -4mV. This shows that the typical(usual) offset voltage of this generic is around that range -6 to -4mV.

Hope this helps.

Regards,

Kristine

Hi Kristine,

Thank you very much. That is very informative.

One more question I have when I am stimulating a buffer using AD8531,output voltage is always 3mv less than expected.I don't know whether it is an issue with the spice model or not.

May I know why

Regards

HARI