Term · Analog, RF & Mixed-Signal
Quantisation noise
The error introduced by rounding a continuous value to the nearest discrete code, which for busy signals behaves like white noise of power equal to one LSB squared over twelve.
It sets the theoretical noise floor of an ideal converter.
- Also known as
- Quantization noise
- Type
- Term
- Domain
- Analog, RF & Mixed-Signal, Data converters
Notes
For slowly varying or low-amplitude inputs it becomes correlated with the signal and appears as tones rather than noise.
Related terms
- SNR
- Noise shaping
- Dither
- ENOB
Part of the Analog, RF & Mixed-Signal glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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