Environmental Monitoring and Control Device
Datasheet
Chapter 12 Appendix B – ADC Voltage Conversion
Table 12.1 − Analog-to-Digital Voltage Conversions for Hardware Monitoring Block
Input Voltage
2.5 VIN
A/D Output
12 VIN
5 VIN
VCC/3.3 VIN
1.8 VIN
1.5 VIN
VCCPIN
Decimal
Binary
<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
…
<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
…
<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
…
<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
…
<0.009
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
…
<0.008
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
…
<0.012
0
1
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
0000 1000
…
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
…
2
3
4
5
6
7
8
…
4.000–4.063
…
1.666–1.692
…
1.100–1.117
…
0.833–0.846
…
0.600-0.609
…
0.500-0.508
…
0.749–0.761 64 (1/4 Scale) 0100 0000
…
…
…
8.000–8.063
…
3.330–3.560
…
2.200–2.217
…
3.300–3.317
…
1.667–1.680
…
2.500–2.513
…
1.200-1.209
…
1.800-1.809
…
1.000-1.008
…
1.500-1.508
…
1.499–1.511 128 (1/2 Scale) 1000 0000
…
…
…
12.000–12.063 5.000–5.026
2.249–2.261 192 (3/4 Scale) 1100 0000
…
…
…
…
…
15.312–15.375 6.380–6.406
15.375–15.437 6.406–6.432
15.437–15.500 6.432–6.458
15.500–15.563 6.458–6.484
15.625–15.625 6.484–6.510
15.625–15.688 6.510–6.536
15.688–15.750 6.536–6.562
15.750–15.812 6.562–6.588
15.812–15.875 6.588–6.615
15.875–15.938 6.615–6.640
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
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
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
1.914-1.922
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
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
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
>15.938
>6.640
SMSC EMC6D100/EMC6D101
Page 75
Rev. 09-09-04
DATASHEET
SMSC [ SMSC CORPORATION ]
