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📝 D/A Converter IC 0808 in 8085 Microprocessor

📖 From An Introduction To Microprocessor 8085 • 13. Interfacing Data converters: A/D and D/A Converters • 12 questions available

Practice MCQs for D/A Converter IC 0808 in 8085 Microprocessor. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-30

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📝 Sample Questions

Q1. What is the resolution (number of bits) of the 0808 D/A converter?

🔹 A. 8-bit

🔹 B. 10-bit

🔹 C. 12-bit

🔹 D. 4-bit

💡 Difficulty: easy | ✅ Correct: A

Q2. How does the binary‑weighted resistor ladder in the 0808 produce a voltage proportional to the digital input?

🔹 A. Each bit controls a resistor that contributes a weighted fraction of the reference voltage

🔹 B. The ladder averages the reference voltage over all bits

🔹 C. The ladder converts the digital code into a frequency which is then filtered

🔹 D. The ladder uses a capacitor network to store charge proportional to the code

💡 Difficulty: medium | ✅ Correct: A

Q3. Explain why the 0808 D/A converter cannot be used for high‑speed waveform generation without additional buffering.

🔹 A. Its internal output stage has limited current capability and relatively long settling time, requiring a buffer for high‑frequency signals

🔹 B. Because it lacks a built‑in clock generator

🔹 C. Because its digital inputs are multiplexed and cannot change quickly

🔹 D. Because it only supports unipolar output ranges

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 Digital to Analog Converter in 8085 Microprocessor 📝 Resistive Divider D/A converter in 8085 Microprocessor 📝 Binary Ladder D/A Converter in 8085 Microprocessor 📝 Performance Criteria for D/A Converter in 8085 Microprocessor 📝 Interfacing of D/A Converter in 8085 Microprocessor

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