56F8322 Techncial Data, Rev. 10.0
122 Freescale Semiconductor
Preliminary
10.15 Analog-to-Digital Converter (ADC) Parameters

Table 10-24 ADC Parameters

Characteristic Symbol Min Typ Max Unit
Input voltages VADIN VREFL —V
REFH V
Resolution RES 12 12 Bits
Integral Non-Linearity1INL +/- 2.4 +/- 3.2 LSB2
Differential Non-Linearity DNL +/- 0.7 < +1 LSB2
Monotonicity GUARANTEED
ADC internal clock fADIC 0.5 5 MHz
Conversion range RAD VREFL —V
REFH V
ADC channel power-up time tADPU 5616
tAIC cycles3
ADC reference circuit power-up time4tVREF ——25ms
Conversion time tADC —6—
tAIC cycles3
Sample time tADS —1—
tAIC cycles3
Input capacitance CADI —5—pF
Input injection current5, per pin IADI ——3mA
Input injection current, total IADIT ——20mA
VREFH current IVREFH —1.2 3mA
ADC A current IADCA —25—mA
ADC B current IADCB —25—mA
Quiescent current IADCQ —010
µA
Uncalibrated Gain Error (ideal) EGAIN +/- .004 +/- .01
Uncalibrated Offset Voltage VOFFSET +/- 26 +/- 32 mV
Calibrated Absolute Error6AECAL See Figure10-20 — LSBs
Calibration Factor 17CF1 — 0.008597
Calibration Factor 27CF2 — -2.8
Crosstalk between channels —— -60 —dB
Common Mode Voltage Vcommon —(V
REFH - VREFLO) / 2 V
Signal-to-noise ratio SNR — 64.6 db