Drawbacks of Weighted Resistor DAC - A/D and D/A Converters - Application of Electronics Class 12

TL;DR

Weighted resistor D to A converters have several drawbacks, including the need for a wide range of resistors, different current and voltage levels, circuit damage, difficulty in managing tolerance levels, temperature sensitivity, and fabrication challenges.

Transcript

click the bell icon to get latest videos from Ekeeda Hello friend so in the today's video we are going to see what are the drawbacks of weighted resistor D to a converter we have seen the diagram and the working of the D to a converter so let's see what are the drawbacks now in DAC that is in D to a converter the each resistor has a different value... Read More

Key Insights

• 🍊 Weighted resistor D to A converters require a wide range of resistors, making their fabrication on an integrated circuit chip difficult.
• ⚡ The varying current and voltage levels in the converter can result in different voltage levels at each stage.
• 🍵 The MSB resistor in the converter needs to handle a large current, which can potentially damage the circuit.
• 🎚️ Managing tolerance levels in the converter is challenging due to the inability to have exact half or double tolerance levels.
• 💱 Temperature changes can affect the resistance value and, consequently, the output of the converter.
• 🍊 Fabricating a weighted resistor D to A converter on an integrated circuit chip is challenging due to the wide range of resistors and tolerance levels required.
• 😄 Weighted resistor D to A converters are not recommended due to their drawbacks.

Summary & Key Takeaways

• Weighted resistor D to A converters require a wide range of resistors, which can be up to 2^(n-1) times the value of the LSB resistor.

• Each resistor in the converter handles a different value of current and voltage, leading to varying voltage levels at each stage.

• The MSB resistor may need to handle a very large current, which can potentially damage the circuit.