Analog-to-Digital Converter (ADC) Parameters
56F8322 Technical Data, Rev. 10.0
Freescale Semiconductor 123
Preliminary
Signal-to-noise plus distortion ratio SINAD — 59.1 db
Total Harmonic Distortion THD — 60.6 db
Spurious Free Dynamic Range SFDR — 61.1 db
Effective Number Of Bits8ENOB — 9.6 Bits
1. INL measured from Vin = .1VREFH to Vin = .9VREFH
10% to 90% Input Signal Range
2. LSB = Least Significant Bit
3. ADC clock cycles
4. Assumes each voltage reference pin is bypassed with 0.1µF ceramic capacitors to ground
5. The current that can be inject ed or sourced from an unselected ADC signal input without impac ting the performance of
the ADC. This allows the ADC to operate in noisy industrial environm ents where inductive flyback is possible.
6. Absolute error includes the effects of both gain error and offset error.
7. Please see the 56F8300 Peripheral User’s Manual for additional information on ADC calibration .
8. ENOB = (SINAD - 1.76)/6.02
Table 10-24 ADC Parameters (Continued)
Characteristic Symbol Min Typ Max Unit