Resolution of adc

The ADC resolution is defined as the smallest incremental voltage that can be recognized and thus causes a change in the digital output. It is expressed as the number of bits output by the ADC. Therefore, an ADC which converts the analog signal to a 12-bit digital value has a resolution of 12 bits.

1. What is ADC resolution and step size?
2. What is the resolution of 8-bit ADC?
3. What is the resolution of a 16-bit ADC?
4. What does 12 or 16-bit resolution mean?

What is ADC resolution and step size?

First, resolution or step size defines the smallest voltage or current change possible for the DAC output signal. For example, an 8-bit DAC that generates a maximum output voltage of 5 volts has a step size or resolution of (5V / 2 8 ) = 19.5 mV. Sometimes, the resolution is stated in the percentage value.

What is the resolution of 8-bit ADC?

The digital output for an analog input of 2.86 V is. No worries!

What is the resolution of a 16-bit ADC?

Similarly, for the same 0 to 10 VDC range, a 16-bit ADC resolution is 10/216 = 10/65,536 = 0.153 mV. The resolution is usually specified with respect to the full-range reading of the ADC, not with respect to the measured value at any particular instant.

What does 12 or 16-bit resolution mean?

A 12-bit digital value can represent 4096 (2¹²) different numbers. A 16-bit digital value can represent 65536 (2¹⁶) different numbers. It might occur to you at this point that a digital input could be thought of as a 1-bit analog to digital converter. Low voltages give a 0 and high voltages give a 1.