Operatsion kuchaytirgichlar asosidagi analog sinyallar o'zgarishlari, buzhari'ish, chepinish, kopaytirish, integral o'zgarmas tok kuchaytirgichiga asoslangan, kuchlanish bo'yicha katta kuchaytirish koefitsientiga ega (KU=104÷106) integral o'zgarmas tok kuchaytirgichiga aytib olinadi. Bunday amallarga qo'shish, ayirish, kopaytirish, bo'lish, integrallash, differensiallash, masshtablash kabi matematik amallar kiramiz.