_pA89
Junior Member level 1
Can anybody (continue to) answer this thread posted @ADIEngineerZone
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AN-1585 figure 2.
2. Even for Range Extension Circuit Resistors R1, R2 have Tolerances, Aging, ... AD8515 opamp has offset and other Errors.2. But be aware that an off-the-shelf capacitor has quite a large tolerance. ...calibration, acurracy disussions make no sense.
AN stands for Application Note. I don't know how the numbers are assigned. I do not know why TI is using a dedicated document name/number on their datasheet. Maybe this for traceability issues if the DS is changed/updated.1. What is the Analog Devices Stand on AN-1585 ? (For Above - Take Any TI - Datasheet)
See reply #14.2. Even for Range Extension Circuit Resistors R1, R2 have Tolerances, Aging,
Please take at least the time to summerize findings, or copy the specific statement (including the link). I will not start reading several other discussions, until I find the ONE reply.--One post - AD7745 HOW to decide Excitation Voltage Level - points to the approximately same question
What is your exact question?3. Vref (=1.17 V)< Vexca/sig (=Vdd/2 = 1.65V) in AD7745, In ADCs Vsig < Vref ?
"TI-doesn't warranty its accuracy or completeness" - is what needs to be considered.AN stands for Application Note. I don't know how the numbers are assigned. I do not know why TI is using a dedicated document name/number on their datasheet. Maybe this for traceability issues if the DS is changed/updated.
Its so simple - "So, Would a result. Capacitance value (refere to digial code) )change according to Excitation Voltage setting?" (the thread has 2 valid posts)Please take at least the time to summerize findings,
If you want to help the question is obvious.What is your exact question?
Posts #17, #19 and #3 (Summarize/Calculate Accuracy of Entire System Worst Case)Please state your exact application and your design goal.
You do understand the (*) datasheet is short, lacking of information.... One has to make far too much assumptions.Your questioins are incoherent, short and are lacking of information.
If you think so...If you want to help the question is obvious