ADC Basics — ADC0804 Resolution The ADC0804 analog to digital converter provides what resolution in bits per conversion?

Introduction / Context:
Resolution defines how many discrete digital levels an ADC provides. The ADC0804 is a widely used microcontroller compatible ADC, often paired with 8-bit systems for simple voltage measurements.

Given Data / Assumptions:

• Device family: ADC080x.
• Single ended input with typical reference and successive approximation architecture.
• Parallel 8-bit data output bus.

Concept / Approach:
An N-bit converter resolves 2^N quantization levels. The ADC0804 outputs 8 data lines, hence N = 8 and the number of codes is 2^8 = 256. Resolution step size equals Vref / 256 when full scale equals Vref.

Step-by-Step Solution:
1) Identify number of output bits: 8.2) Compute levels: 2^8 = 256 codes.3) Conclude resolution: 8-bit.

Verification / Alternative check:
Datasheets show D7..D0 outputs and 8-bit timing diagrams consistent with an 8-bit SAR core.

Why Other Options Are Wrong:

• 4-bit: Too coarse; would only have 16 levels.
• 16-bit: Far beyond the ADC0804 capability.
• 32-bit: Not applicable to this device class.

Common Pitfalls:
Confusing resolution with accuracy or linearity; believing that oversampling changes the native resolution without digital filtering and scaling.

Final Answer:
8-bit