ADC and DAC basics
Digital electronics · Physics
DC circuit
Interactive 3DElectrons drift around the loop — raise the voltage and watch the current obey Ohm's law.
Controls
Drag the sliders or type a value — the simulation updates live.
Study notes
Let us calculate the resolution of an Analog-to-Digital Converter (ADC) step by step. Problem Statement: Find the resolution (step size) of a 3-bit ADC that has a reference voltage (Vref) of 7 Volts. Step 1: Identify the given values from the problem. - Reference voltage, Vref = 7 Volts (V) - Number of bits, n = 3 Step 2: Write down the formula for ADC resolution. Resolution = Vref / (2^n - 1) Step 3: Calculate the total number of digital steps (2^n - 1). 2^3 = 8 8 - 1 = 7 steps Step 4: Substitute the values into the formula. Resolution = 7 V / 7 = 1 V per step Final Answer: The resolution of this ADC is 1 Volt, meaning every change of 1 Volt in the analog input increases the digital output by 1 step.