integrating ADC

Discussion in 'The Projects Forum' started by firsttimedesigning, Feb 17, 2008.

  1. firsttimedesigning

    Thread Starter New Member

    Feb 17, 2008
    So I am trying to design an integrating ADC and I am having trouble with the integrator part. The output of the integrator is not very accurate, for example, when the output should become 0 at 465us. It becomes 0 at 464us.
    The op-amp that I have designed for the integrator is a telescopic op-amp.
    I have two questions,

    1. How to improve the accuracy?
    2. When designing an integrating ADC, is it a must to use switch capacitor integrator? When I use switch capacitor integrator, the charge injection from the switch would change the result...
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    Is this a school exercise? There are so many on the market, that it is a lot like reinventing the wheel.

    Is the integration dual- or single-slope?

    What is a "telescopic" op amp? I have never heard the term before.