
MCF52211 ColdFire Microcontroller, Rev. 2
Electrical Characteristics
Freescale Semiconductor
37
Figure 7. I2C Input/Output Timings
2.13
Analog-to-Digital Converter (ADC) Parameters
Table 34 lists specifications for the analog-to-digital converter.
Table 34. ADC Parameters1
Name
Characteristic
Min
Typical
Max
Unit
VREFL
Low reference voltage
VSS
—VREFH
V
VREFH
High reference voltage
VREFL
—VDDA
V
VDDA
ADC analog supply voltage
3.0
3.3
3.6
V
VADIN
Input voltages
VREFL
—VREFH
V
RES
Resolution
12
—
12
Bits
INL
Integral non-linearity (full input signal range)2
—
2.5
3LSB3
INL
Integral non-linearity (10% to 90% input signal range)4
—
2.5
3LSB
DNL
Differential non-linearity
—
–1 < DNL <
1<1LSB
Monotonicity
GUARANTEED
fADIC
ADC internal clock
0.1
—
5.0
MHz
RAD
Conversion range
VREFL
—VREFH
V
tADPU
ADC power-up time5
—613
tAIC cycles
6
tREC
Recovery from auto standby
—
0
1
tAIC cycles
tADC
Conversion time
—
6
—
tAIC cycles
tADS
Sample time
—
1
—
tAIC cycles
CADI
Input capacitance
—
—pF
XIN
Input impedance
—
—W
IADI
Input injection current7, per pin
—
3
mA
IVREFH
VREFH current
—
0
—
mA
VOFFSET Offset voltage internal reference
—
8
15
mV
EGAIN
Gain error (transfer path)
.99
1
1.01
—
VOFFSET Offset voltage external reference
—
39
mV
SNR
Signal-to-noise ratio
—
62 to 66
—
dB
I2
I6
I1
I4
I7
I8
I9
I5
I3
SCL
SDA