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ADC Resolution Calculator
Explore an ideal unipolar ADC’s resolution and output code.
Free to use On-device processing No account needed
Your workspace Runs privately in your browser
Your result
A little guidance.
Use LSB = Vref / 2ᴺ for an ideal unsigned ADC. The modeled code is floor(Vin / LSB), clamped to 2ᴺ − 1 at full scale. The reconstructed voltage is the lower edge of that code bin. Actual transfer functions, reference error, and noise depend on the device.
How it works
- Enter your values, or use the example to get started.
- Select “Calculate” to process your input in your browser.
- Review the result, then copy or download it when available.
Good to know.
Why use 2ᴺ instead of 2ᴺ − 1 for the LSB?
An N-bit converter has 2ᴺ quantization bins. The highest unsigned code is 2ᴺ − 1. This model reports bin width rather than an endpoint-fit voltage-per-code convention.
Is my input sent to a server?
No. This tool runs in your browser. KILIZU does not upload or store the values or files you enter here.