56F8167 datasheet(162/184 Pages) FREESCALE

162 / 184 page

56F8367 Technical Data, Rev. 7.0

162

Freescale Semiconductor

Preliminary

Signal-to-noise plus distortion ratio

SINAD

—

59.1

—

Total Harmonic Distortion

THD

—

60.6

—

Spurious Free Dynamic Range

SFDR

—

61.1

—

Effective Number Of Bits8

ENOB

—

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 0.1

µF ceramic capacitors to ground

5. The current that can be injected or sourced from an unselected ADC signal input without impacting the performance of

the ADC. This allows the ADC to operate in noisy industrial environments where inductive flyback is possible.

6. Absolute error includes the effects of both gain error and offset error.

7. Please see the 56F8300Peripheral 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

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