15 APPENDIX B – ADC VOLTAGE CONVERSION
SMSC DS – LPC47M192
Page 222
Rev. 03/30/05
DATASHEET
Table 78
Analog-to-Digital Conversions for Hardware Monitoring Block
Input Voltage
A/D Output
12 V
IN
<0.062
0.062–0.125
0.125–0.188
0.188–0.250
0.250–0.313
0.313–0.375
0.375–0.438
0.438–0.500
0.500–0.563
…
4.000–4.063
…
8.000–8.063
…
12.000–12.063
…
15.312–15.375
15.375–15.437
15.437–15.500
15.500–15.563
15.625–15.625
15.625–15.688
15.688–15.750
15.750–15.812
15.812–15.875
15.875–15.938
>15.938
5 V
IN
<0.026
0.026–0.052
0.052–0.078
0.078–0.104
0.104–0.130
0.130–0.156
0.156–0.182
0.182–0.208
0.208–0.234
…
1.666–1.692
…
3.330–3.560
…
5.000–5.026
…
6.380–6.406
6.406–6.432
6.432–6.458
6.458–6.484
6.484–6.510
6.510–6.536
6.536–6.562
6.562–6.588
6.588–6.615
6.615–6.640
>6.640
V
CC
/3.3 V
IN
<0.0172
0.017–0.034
0.034–0.052
0.052–0.069
0.069–0.086
0.086–0.103
0.103–0.120
0.120–0.138
0.138–0.155
…
…
2.200–2.217
…
3.300–3.317
…
4.210–4.230
4.230–4.245
4.245–4.263
4.263–4.280
4.280–4.300
4.300–4.314
4.314–4.330
4.331–4.348
4.348–4.366
4.366–4.383
>4.383
2.5 V
IN
<0.013
0.013–0.026
0.026–0.039
0.039–0.052
0.052–0.065
0.065–0.078
0.078–0.091
0.091–0.104
0.104–0.117
…
0.833–0.846
…
1.667–1.680
…
2.500–2.513
…
3.190–3.203
3.203–3.216
3.216–3.229
3.229–3.242
3.242–3.255
3.255–3.268
3.268–3.281
3.281–3.294
3.294–3.307
3.307–3.320
>3.320
1.8 V
IN
<0.009
0.009-0.019
0.019-0.028
0.028-0.038
0.038-0.047
0.047-0.056
0.056-0.066
0.066-0.075
0.075-0.084
…
0.600-0.609
…
1.200-1.209
…
1.800-1.809
…
2.297-2.306
2.306-2.316
2.316-2.325
2.325-2.334
2.334-2.344
2.344-2.353
2.353-2.363
2.363-2.372
2.372-2.381
2.381-2.391
>2.391
1.5 V
IN
<0.008
0.008-0.016
0.016-0.023
0.023-0.031
0.031-0.039
0.039-0.047
0.047-0.055
0.055-0.063
0.063-0.070
…
0.500-0.508
…
1.000-1.008
…
1.500-1.508
…
1.914-1.922
1.922-1.930
1.930-1.938
1.938-1.945
1.945-1.953
1.953-1.961
1.961-1.969
1.969-1.977
1.977-1.984
1.984-1.992
>1.992
V
CCPIN
<0.012
0.012–0.023
0.023–0.035
0.035–0.047
0.047–0.058
0.058–0.070
0.070–0.082
0.082–0.093
0.093–0.105
…
0.749–0.761
…
1.499–1.511
…
2.249–2.261
…
2.869–2.881
2.881–2.893
2.893–2.905
2.905–2.916
2.916–2.928
2.928–2.940
2.940–2.951
2.951–2.964
2.964–2.975
2.975–2.987
>2.988
Decimal
Binary
0
1
2
3
4
5
6
7
8
…
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
0000 1000
…
0100 0000
…
64 (1/4 Scale)
…
128 (1/2 Scale) 1000 0000
…
192 (3/4 Scale) 1100 0000
…
245
246
247
248
249
250
251
252
253
254
255
…
…
1111 0101
1111 0110
1111 0111
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111