Electronics - Analog and Digital Converters - Discussion

The binary-weighted DAC, which contains individual electrical components for each bit of the DAC connected to a summing point. These precise voltages or currents sum to the correct output value. This is one of the fastest conversion methods but suffers from poor accuracy because of the high precision required for each individual voltage or current. Such high-precision components are expensive, so this type of converter is usually limited to 8-bit resolution or less.

@Arijit.

As you increase number of bits the resistor values also gets doubled. At higher range you can't find precise resistor values which would add up to significant error due to tolerance of resistors. Hence it is not recommended to use R-2R network beyond 4 bits.

In ace gate material it is 8 bit right?

Please some one explain this.

I Agree with Arijit.