How to Calculate Equivalent Analog Voltage in a 12-bit ADC?

How do you calculate the equivalent analog voltage in a 12-bit ADC with Vfs=3.3V given a digital code of 583?

What steps are involved in determining the equivalent analog voltage in this scenario?

Steps to Calculate Equivalent Analog Voltage:

1. Identify the ADC resolution: For a 12-bit ADC, there are 2^12 (4096) distinct codes.

2. Determine the voltage step size: Divide the full-scale voltage (VFS) by the number of codes. Calculate 3.3V / 4096 = 0.000805V per code.

3. Calculate the equivalent analog voltage: Multiply the digital code (583) by the voltage step size (0.000805V). The result is 583 x 0.000805V = 0.469415V.

Equivalent analog voltage refers to a voltage that represents a continuous analog signal in a digital system. The analog voltage is sampled at discrete intervals, quantized, and converted to digital form for processing. The equivalent analog voltage signifies the original analog signal and is utilized for further processing or output.

To determine the equivalent analog voltage for a 12-bit ADC with Vfs=3.3V and a digital code of 583, several steps must be followed. Firstly, the resolution of the ADC needs to be calculated. The resolution, calculated as Vfs/2^12, gives 0.000805664V per step. Next, by multiplying the resolution by the digital code, the analog voltage can be found.

For a 12-bit ADC with Vfs=3.3V, the equivalent analog voltage for a digital code of 583 is approximately 0.469V. This calculation showcases the process of converting digital codes into their equivalent analog voltage representation.