MAC7100CVF Motorola, MAC7100CVF Datasheet - Page 23

• Manufacturer Part Number: MAC7100CVF
• Description: MAC7100 Microcontroller Family Hardware Specifications
• Manufacturer: Motorola

Electrical Characteristics
3.10 Analog-to-Digital Converter Characteristics
Table 24 and Table 25 show conditions under which the ATD operates. The following constraints exist to
obtain full-scale, full range results: V
sample buffer amplifier cannot drive beyond the ATD power supply levels. If the input level goes outside
of this range it will effectively be clipped.
1
2
1
2
3.10.1 Factors Influencing Accuracy
Three factors — source resistance, source capacitance and current injection
accuracy of the ATD.
23
Conditions shown in Table 6 unless otherwise noted
Conditions shown in Table 6, with V
Num C
Num C
M1
M2
M3
M4
M5
M6
M7
M8
N1
N2
N3
N4
N5
N6
N7
N8
Full accuracy is not guaranteed when differential voltage is less than 4.50 V
Minimum time assumes final sample period of 2 ATD clocks; maximum time assumes final sample period of 16 ATD clocks.
Full accuracy is not guaranteed when differential voltage is less than 3.0 V
Minimum time assumes final sample period of 2 ATD clocks; maximum time assumes final sample period of 16 ATD clocks.
D Reference Potential
C Differential Reference Voltage
D ATD Clock Frequency
D ATD 10-bit Conversion PeriodClock Cycles
D ATD 8-bit Conversion PeriodClock Cycles
D Recovery Time (V
D Reference Potential
C Differential Reference Voltage
D ATD Clock Frequency
D ATD 10-bit Conversion PeriodClock Cycles
D ATD 8-bit Conversion PeriodClock Cycles
D Recovery Time (V
P Reference Supply current 1 ATD module enabled
P Reference Supply current 2 ATD modules enabled
P Reference Supply current 1 ATD module enabled
P Reference Supply current 2 ATD modules enabled
Conv, Time at 2.0MHz ATD Clock f
Conv, Time at 2.0MHz ATD Clock f
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
MAC7100 Microcontroller Family Hardware Specifications
Table 25. ATD Operating Characteristics in 3.3 V Range
Table 24. ATD Operating Characteristics in 5 V Range
DD
DD
Freescale Semiconductor, Inc.
A = 5.0 V)
A=5.0 V)
Rating
Rating
For More Information On This Product,
DD
X = 3.3 V ±10% and a temperature maximum of +140°C unless otherwise noted.
@ 2.0MHz f
@ 2.0MHz f
1
1
SS
Go to: www.freescale.com
A ≤ V
RL
ATDCLK
2
ATDCLK
ATDCLK
2
ATDCLK
2
2
≤ V
High
High
Low
Low
IN
V
V
N
N
≤ V
T
T
Symbol
Symbol
N
N
f
T
f
T
RH
ATDCLK
ATDCLK
RH
CONV10
CONV10
CONV10
CONV10
CONV8
CONV8
CONV8
t
CONV8
t
V
I
I
V
I
I
V
V
REC
REC
REF
REF
REF
REF
RH
– V
RH
–V
RL
RL
RH
RL
RL
≤ V
V
V
DD
DD
DD
V
V
4.50
Min
Min
0.5
3.0
0.5
SS
14
12
SS
14
12
—
—
—
—
—
—
A. This constraint exists because the
A ÷ 2
7
6
A ÷ 2
7
6
A
A
—
5.00
Typ
Typ
3.3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
have an influence on the
V
V
DD
DD
V
0.375
0.750
V
0.375
0.250
Max
5.25
Max
2.0
3.6
2.0
DD
28
14
26
13
20
DD
28
14
26
13
20
A ÷ 2
A ÷ 2
MOTOROLA
A
A
Cycles
Cycles
Cycles
Cycles
MHz
MHz
Unit
Unit
mA
mA
mA
mA
µs
µs
µs
µs
µs
µs
V
V
V
V
V
V