MCF51JU128VHS FREESCALE [Freescale Semiconductor, Inc], MCF51JU128VHS Datasheet - Page 37

• Manufacturer Part Number: MCF51JU128VHS
• Description: MCF51JU128
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

5. For guidelines and examples of conversion rate calculation, download the ADC calculator tool: http://cache.freescale.com/
6.6.1.2 12-bit ADC electrical characteristics
Freescale Semiconductor, Inc.
I
Symbol
DDA_ADC
f
files/soft_dev_tools/software/app_software/converters/ADC_CALCULATOR_CNV.zip?fpsp=1
ADACK
TUE
DNL
INL
V
AS
Table 23. 12-bit ADC characteristics (V
Supply current
ADC
asynchronous
clock source
Sample Time
Total unadjusted
error
Differential non-
linearity
Integral non-
linearity
Description
R
AS
Figure 9. ADC input impedance equivalency diagram
See Reference Manual chapter for sample times
Conditions
C
AS
• ADLPC=1, ADHSC=0
• ADLPC=1, ADHSC=1
• ADLPC=0, ADHSC=0
• ADLPC=0, ADHSC=1
• 12 bit modes
• <12 bit modes
• 12 bit modes
• <12 bit modes
• 12 bit modes
• <12 bit modes
Z
AS
MCF51JU128 Data Sheet, Rev. 4, 01/2012.
1
Table continues on the next page...
V
ADIN
INPUT PIN EQUIVALENT
Pad
leakage
due to
input
protection
INPUT PIN
INPUT PIN
INPUT PIN
INPUT PIN
SIMPLIFIED
CIRCUIT
0.215
Min.
1.2
3.0
2.4
4.4
—
—
—
—
—
—
REFH
= V
Z
Typ.
±1.4
±0.7
±0.2
±1.0
±0.5
ADIN
DDA
2.4
4.0
5.2
6.2
±4
—
2
, V
CHANNEL SELECT
R
R
R
R
ADIN
ADIN
ADIN
ADIN
SIMPLIFIED
REFL
-0.3 to 0.5
CIRCUIT
-1.1 to
-2.7 to
-0.7 to
Max.
±6.8
±2.1
+1.9
+1.9
+0.5
1.7
3.9
7.3
6.1
9.5
= V
SSA
)
LSB
LSB
LSB
MHz
MHz
MHz
MHz
Unit
mA
C
ADIN
ADC SAR
4
4
4
ENGINE
t
ADACK
f
Notes
ADACK
Analog
3
5
5
5
= 1/
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