8-Bit and 10-Bit DAC Calculator: Digital to Analog Conversion

This page provides information about 8-bit and 10-bit Digital-to-Analog Converter (DAC) calculators. These calculators take a digital input and provide the corresponding analog output voltage. We’ll also cover the DAC conversion formulas used. The example here uses a simple R-2R binary weighted DAC for calculation purposes.

8-bit DAC Calculator

Inputs

Outputs

Here’s an example to illustrate how the 8-bit DAC calculator works:

INPUTS:

  • Binary (LSB to MSB): (MSB) 1000 0001 (LSB)
  • Reference Voltage = 5 V
  • n (number of bits) = 8 (since it’s an 8-bit DAC)

OUTPUT:

  • Output analog voltage = 2.529 V

8-bit DAC calculator Figure 1: Pin diagram of a simple 8-bit DAC converter.

The following DAC conversion formula/equation is used by the 8-bit DAC calculator:

8 bit DAC conversion formula,equation

10-bit DAC Calculator

Inputs

Outputs

Now, let’s look at an example of a 10-bit DAC calculation:

INPUTS:

  • Binary (LSB to MSB): (MSB) 001111 1010 (LSB)
  • Reference Voltage = 3.3 V
  • n (number of bits) = 10 (since it’s a 10-bit DAC)
  • Decimal equivalent of the binary value: 250

OUTPUT:

  • Output analog voltage = 0.806 Volt

10-bit DAC calculator Figure 2: Pin diagram of a simple 10-bit DAC converter.

The following DAC conversion formula/equation is used by the 10-bit DAC calculator:

10 bit DAC conversion formula,equation