MCF51JU128VHS FREESCALE [Freescale Semiconductor, Inc], MCF51JU128VHS Datasheet - Page 36

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

Analog
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
36
I
Symbol
DDA_ADC
f
files/soft_dev_tools/software/app_software/converters/ADC_CALCULATOR_CNV.zip?fpsp=1
ADACK
TUE
V
AS
Table 24. 12-bit ADC characteristics (V
Supply current
ADC
asynchronous
clock source
Sample Time
Total unadjusted
error
Description
R
AS
Figure 9. ADC input impedance equivalency diagram
MCF51JU128 Advance Information Data Sheet, Rev. 1, 08/2011.
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
Z
AS
1
Table continues on the next page...
V
ADIN
INPUT PIN EQUIVALENT
Pad
leakage
due to
input
protection
Preliminary
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.
±0.8
±0.5
ADIN
DDA
2.4
4.0
5.2
6.2
—
2
, V
CHANNEL SELECT
R
R
R
R
ADIN
ADIN
ADIN
ADIN
SIMPLIFIED
REFL
CIRCUIT
±TBD
Max.
1.7
3.9
7.3
6.1
9.5
±1
= V
Freescale Semiconductor, Inc.
SSA
)
LSB
MHz
MHz
MHz
MHz
Unit
mA
C
ADIN
ADC SAR
4
ENGINE
t
conversion
%1, AVGS
averaging
ADACK
hardware
<12MHz,
(AVGE =
= %11)
f
Notes
ADACK
clock
ADC
Max
3
= 1/