Calculateur de Débit en Bauds
Calculez le débit en bauds pour les communications série.
Step Size (LSB)
4.8828 mV
Step Size (LSB) vs DAC Bits
Formule
## 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.
Exemple Résolu
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
Questions Fréquentes
Why can the DAC not reach full Vref?
The maximum code is 2^N - 1, so V_max = Vref x (2^N-1)/2^N, which is one LSB below Vref.
What is glitch energy?
A brief output spike during code transitions caused by internal switch timing. It matters in high-speed and audio applications.
R-2R vs resistor string DAC?
R-2R ladder is compact and monotonic. Resistor string (thermometer) has guaranteed monotonicity and better DNL but more components.
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