Advantages and disadvantages of successive approximation type DVM (digital voltmeter)

There are some advantages of successive approximation type DVM which are given below,

• It is economical method of analog to digital conversion.
• The resolution is up to 5 important digits are obtained.

There are some disadvantages of successive approximation type DVM which are given below,

• Incorrect reading is obtained when the noise signal is occurred.
• The filter is used to reduce the noise signal which also reduces the total speed of operation.
• The accuracy of the whole system is depends on accuracy of digital to analog converter and accuracy of internal reference supply.
• The speed of operation is restricted. The speed is depends on which type of switches are used.
• The conversion time required for digital to analog converter.