DAC Resolution Calculator
Calculate the output voltage step size and maximum output of a digital-to-analog converter.
bits
V
Step Size (LSB)
4.8828 mV
Output Voltage2.5000 V
Maximum Output4.9951 V
Step Size (LSB) vs DAC Bits
DAC Resolution
Formulas
Step Size = V_ref / 2^N
V_out = Code x V_ref / 2^N
V_max = (2^N - 1) x V_ref / 2^N
The DAC converts a digital number into an analog voltage. Each increment of the digital code changes the output by one LSB.
Example Calculation
10-bit DAC with 5 V reference, digital code = 512.
- 01Step size = 5 / 1024 = 4.883 mV
- 02V_out = 512 x 5 / 1024 = 2.500 V
- 03V_max = 1023 x 5 / 1024 = 4.995 V
Frequently Asked Questions
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