
Electrical Characteristics
68HC(9)12DG128 Rev 1.0
360
Electrical Characteristics
MOTOROLA
Table 67 ATD DC Electrical Characteristics
V
DD
=
5.0 Vdc
±
10%, V
SS
=
0 Vdc, T
A
=
T
L
to T
H
, ATD Clock
=
2 MHz, unless otherwise noted
Characteristic
Symbol
Min
Max
Unit
Analog supply voltage
V
DDA
4.5
5.5
V
Analog supply current
Normal operation
I
DDA
1.0
mA
Reference voltage, low
V
RL
V
SSA
V
DDA
/
2
V
DDA
/
2
V
Reference voltage, high
V
RH
V
DDA
V
V
REF
differential reference voltage
(1)
Input voltage
(2)
V
RH
V
RL
4.5
5.5
V
V
INDC
V
SSA
V
DDA
V
Input current, off channel
(3)
I
OFF
100
nA
Reference supply current
I
REF
250
μ
A
Input capacitance
Not Sampling
Sampling
C
INN
C
INS
10
15
pF
pF
1. Accuracy is guaranteed at V
RH
V
RL
=
5.0V
±
10%.
2. To obtain full-scale, full-range results, V
SSA
≤
V
RL
≤
V
INDC
≤
V
RH
≤
V
DDA
.
3. Maximum leakage occurs at maximum operating temperature. Current decreases by approximately one-half for each 10
°
C
decrease from maximum temperature.
Table 68 Analog Converter Characteristics (Operating)
V
DD
=
5.0 Vdc
±
10%, V
SS
=
0 Vdc, T
A
=
T
L
to T
H
, ATD Clock
=
2 MHz, unless otherwise noted
Characteristic
Symbol
Min
Typical
Max
Unit
8-bit resolution
(1)
1 count
20
mV
8-bit differential non-linearity
(2)
DNL
0.5
+
0.5
count
8-bit integral non-linearity
(2)
INL
1
+
1
count
8-bit absolute error
,(3)
2, 4, 8, and 16 ATD sample clocks
AE
1
+
1
count
10-bit resolution
(1)
1 count
5
mV
10-bit differential non-linearity
(2)
DNL
–2
2
count
10-bit integral non-linearity
(2)
INL
–2
2
count
10-bit absolute error
(3)
2, 4, 8, and 16 ATD sample clocks
AE
–2.5
2.5
count
Maximum source impedance
R
S
20
See
note
(4)
K
6-elec