ECE214_opamp2

Input offset is the result of

• mismatches

• BJT current

• finite gain

• limited speed

Input bias current problem exists in

• BJT opamps

• MOS opamps

• both of them

Which of the following statements is(are) correct

• The closed loop bandwidth is larger than the open loop one

• The closed loop bandwidth is smaller than the open loop one

• The closed loop unity gain frequency is larger than the open loop one

• The closed loop unity gain frequency is smallerthan the open loop one

When a large input step is applied to the opamp input

• it slews

• it slows

• it salah

• it stops

A Schmitt trigger

• has hysteresis

• has negative feedback

• has positive feedback

• is a linear circuit