Advantages and disadvantages of direct coupled amplifier

There are some advantages of direct coupled amplifier which are given below,

• The direct coupled amplifier has a excellent frequency response.
• The circuit cost is low because the absence of expensive coupling components.
• The circuit is very simple because it uses a minimum number of resistors.
• It can amplify very low frequency signals down to zero frequency.

There are some disadvantages of direct coupled amplifier which are given below,

• The direct coupled amplifier cannot amplify high frequency signals.
• Its output is not drifting less.
• The output changes with the time and change in supply voltage.
• It has poor temperature stability, due to this its operating point shifts.
• At low frequencies capacitor fail and act like a short circuit.