Historical 8-bit DACs: Evaluate: “The DAC0808 and the MC1408 are popular, low-cost, 8-bit D/A converters (current-output type).”

Introduction / Context:
The DAC0808 and its Motorola/ON counterpart MC1408 are classic 8-bit DACs widely used in education and industry. They are inexpensive, easy to interface, and represent the canonical example of a current-output DAC that requires an external I/V converter to produce a voltage output.

Given Data / Assumptions:

• Resolution: 8 bits.
• Architecture: current-output, weighted or segmented internally.
• Typical use: pair with an op-amp transimpedance stage for voltage output.

Concept / Approach:
These devices sink/source a controlled output current proportional to the applied digital code and reference. Because they are current-output, applications commonly include an op-amp configured as a transimpedance amplifier to generate a voltage with desired polarity and scaling. Their popularity stems from availability, cost, and abundant example circuits in textbooks and application notes.

Step-by-Step Solution:

Verification / Alternative check:
Typical specifications list full-scale current, compliance voltage, reference requirements, and settling times, confirming current-output behavior and 8-bit resolution.

Why Other Options Are Wrong:

Common Pitfalls:
Forgetting to include an I/V stage and compliance limits, leading to linearity issues.

Final Answer:
Correct