M16C29_07 Datasheet, PDF (13/17 Pages) Renesas Technology Corp – Standard Characteristics

A/D conversion accuracy standard characteristics example-4
M16C/29 Group Standard Characteristics
M30290FxHP(x=A,C),M30291FxHP(x=A,C),
M30290FxTHP(x=A,C),M30291FxTHP(x=A,C),
M30290FxVHP(x=A,C),M30291FxVHP(x=A,C)
A/D CONVERTER STEP WIDTH MEASUREMENT
• Vcc = 3.3[V]
• VREF =3.3[V]
• OCO
• 1LSB Width = 3.3[V] / 1024 = 3.2[mV]
• Temp. = 25[°C]
• CPU mode = 1MHz
• A/D conversion clock = 1MHz
3.0
2.5
2.0
1.5
1LSB Width
1.0
0.5
0.0
-0.5
Error
-1.0
-1.5
-2.0
-2.5
-3.0
0
16
32
48
64
80
96
112
128
144
160
Conversion value
• A/D conversion mode = 10bit
1LSB Width
Error
176
192
208
224
240
256
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
256
272
288
304
320
336
352
368
384
400
416
432
448
464
480
496
512
Conversion value
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
512
528
544
560
576
592
608
624
640
656
672
688
704
720
736
752
768
Conversion value
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
768
784
800
816
832
848
864
880
896
912
928
944
960
976
992
1008 1024
Conversion value
Fig. 26. A/D conversion accuracy standard characteristics example-4
REJ99B1342-0100
©2007. Renesas Technology Corp., All rights reserved.
2007.06
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