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LTC2495 ADC error terms and PGA

Category: Datasheet/Specs
Product Number: LTC2495
Software Version: N/A

A quick question about the LTC2495 performance specifications to make sure I'm not misreading the datasheet... The spec claims 15 PPM VRef max INL and 32 PPM max positive and negative full scale error. Is that measured after the PGA? That is, would the worst case input referred error contributions be 32 PPM * VRef/A_pga and 15 PPM * Vref/A_pga from the ADC full scale error and INL, respectively, where A_pga is the configured PGA gain?

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    •  Analog Employees 
    •  Super User 
    in reply to ctappan +1 verified

    Hi  ,

    Apologies for the late response. The max INL and max positive and negative full scale error on the datasheet is specified and only guaranteed at a Gain of 1. You can use the equation you stated…

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