Table 42. ADC conversion characteristics (10-bit ADC_0) (continued)
Symbol C
Parameter
Conditions1
Value
Unit
Min
Typ
Max
tADC0_S CC T Sample time4
tADC0_C CC P Conversion time5,6
CS CC D ADC_0 input
sampling
capacitance
fADC = 32 MHz
fADC = 30 MHz
fADC = 32 MHz
fADC = 30 MHz
—
0.125
—
0.150
0.625
—
0.700
—
—
—
µs
µs
3
pF
CP1 CC D ADC_0 input pin
—
capacitance 1
—
—
3
pF
CP2 CC D ADC_0 input pin
—
capacitance 2
—
—
1
pF
CP3 CC D ADC_0 input pin
—
capacitance 3
—
—
1
pF
RSW1 CC D Internal resistance of
—
analog source
—
—
3
k
RSW2 CC D Internal resistance of
—
analog source
—
—
2
k
RAD CC D Internal resistance of
—
analog source
—
—
2
k
IINJ SR — Input current Injection Current
VDD =
5
—
injection on 3.3 V ± 10%
one ADC_0
input, different VDD =
5
—
from the
5.0 V ± 10%
converted one
5
mA
5
| INL | CC T Absolute value for No overload
integral non-linearity
—
0.5
1.5
LSB
| DNL | CC T Absolute differential No overload
non-linearity
—
0.5
1.0
LSB
| OFS | CC T Absolute offset error
—
—
0.5
—
LSB
| GNE | CC T Absolute gain error
—
—
0.6
—
LSB
TUEP
CC P Total unadjusted Without current injection
error7 for precise
T channels, input only With current injection
pins
2
0.6
3
2
LSB
3
TUEX CC T Total unadjusted Without current injection
T
error(7) for extended
channel
With current injection
3
1
4
1 VDD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified.
2 Analog and digital VSS_HV must be common (to be tied together externally).
3
LSB
4
MPC5646C Microcontroller Data Sheet, Rev. 3
78
Preliminary—Subject to Change Without Notice
Freescale Semiconductor