ADC Calculator: Analog to Digital Converter

This n-bit ADC calculator helps you convert an analog input signal into a digital output. It uses the ADC conversion formula to perform the calculation.

ADC Conversion Caluclator and Example

The Analog to Digital Converter calculator relies on a specific formula. Let’s look at some examples to see how it works:

EXAMPLE #1:

• Inputs:
  • n (number of bits) = 3
  • Analog input (V_in) = 5.5V
  • Reference voltage (V_ref) = 8 V
• Output:
  • 5 (numeric/decimal)
  • 101 (binary)

EXAMPLE #2:

• Inputs:
  • n (number of bits) = 10
  • Analog input (V_in) = 0.806V
  • Reference voltage (V_ref) = 3.3 V
• Output:
  • 250 (numeric/decimal)
  • 1111 1010 (binary)

Visual Representation

Figure 1: Simple pin diagram of an n-bit ADC converter.

The calculator first determines the numerical digital output and then applies the ADC conversion formula to convert this number into its binary equivalent.

ADC Conversion Formula/Equation

The following ADC conversion formula is used in this 8-bit Analog to Digital Converter calculator: