12. Data Conversion Circuits – D/A and A/D Converters - Part A
Digital-to-analogue (D/A) and analogue-to-digital (A/D) converters are essential for interfacing digital systems with analogue systems, playing a crucial role in various applications including communication and measurement devices. The chapter covers the operational fundamentals, major performance specifications, types, and applications of D/A and A/D converters, supported by numerous solved examples to illustrate the concepts.
Sections
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What we have learnt
- D/A converters transform digital signals to analogue voltage/current.
- A/D converters digitize analogue signals for digital systems.
- Performance specifications for D/A converters include resolution, accuracy, conversion speed, and more.
Key Concepts
- -- DigitaltoAnalogue Converter (D/A)
- A device that converts digital data into an analogue voltage or current, proportional to the weighted sum of digital inputs.
- -- AnaloguetoDigital Converter (A/D)
- A device that converts an analogue signal into a digital signal, enabling communication between analogue and digital systems.
- -- Resolution
- The number of distinct output levels of a D/A converter, determined by the number of bits in the input digital word.
- -- Accuracy
- The difference between the actual analogue output and the ideal expected output for a given digital input.
- -- Settling Time
- The time required for the analogue output of a D/A converter to stabilize within a specified error band after a change in digital input.
Additional Learning Materials
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