AN1058 Freescale Semiconductor / Motorola, AN1058 Datasheet - Page 19

• Manufacturer Part Number: AN1058
• Description: Reducing A/D Errors in Microcontroller Applications
• Manufacturer: Freescale Semiconductor / Motorola

AN1058
MOTOROLA
R EADING
Note: Readings are rounded to nearest 1% value. Columns with 0% and a grey bar imply >0% and <0.5%.
R EADING
Freescale Semiconductor, Inc.
A1–A8
A9–B0
B1–B8
B9–C0
C1–FF
A1–A8
A9–B0
B1–B8
B9–C0
C1–FF
(H EX)
91–98
99–A0
91–98
99–A0
(HEX)
ADC
0–90
0–90
ADC
For More Information On This Product,
FR EQ .
FR EQ .
95 %
98 %
0 %
1 %
1 %
1 %
0 %
2 %
0 %
0 %
1 %
0 %
0 %
0 %
0 %
0 %
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EXPANDED SCALE
EXPANDED SCALE
0
0
CO ND ITION S: N O BYPASSING
TO TAL SAM PLES = 8192
C ON DITIO NS: 0.1 F CERAM IC BYPASS
TOTAL SAM PLES = 8192
Figure 8. Effect of Bypassing Only
5
5
10
10
(b) Improved Bypassing
(a) No Bypassing
20
20
30
30
PERCENT OCCURRENCE
PERCENT OCCURRENCE
40
40
50
50
60
60
M 68HC11 INDU STRIAL
M 68H C11 IN DUSTRIAL
70
Real-World Example
70
CO NTR OLLER
C ON TRO LLER
Application Note
80
80
90
90
100
100
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