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Recent content by hiwar

  1. H

    How to determine Sigma delta mdulator coefficient??

    The first, you must determine which architecture is used. Then get the NTF expression according to the architecture. Using the two NTF expression, you can get the coefficient. The book analog integrated circuit design of David Johns gives a good example.
  2. H

    A question of opamp's load

    But there will be a 1uF Cap connected to the opamp's output according to the Miller effect. I'm confused.
  3. H

    A question of opamp's load

    I'm designing a RC integrator with a 1µF Cap connected between opamp's negative input and output. When I design the opamp circuit, how to determine the load of the opamp? Is it 1µF? I don't know. Thank you for your help.
  4. H

    Question about average circuit

    site:www.edaboard.com ad736 I'm designing a circuit to average a pulse signal, which frequency is from 120 to 600Hz and amplitude is variable. How can I get the exact average value of the amplitude in 100ms? Thanks.

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