ADM1024 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADM1024 Datasheet PDF : 32 Pages
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ADM1024
Channel Mode Register Bit
0
1
2
3
4
5
6
7
Power-On Default = 0000 0000
Table II. Channel Mode Register
Controls Pin(s)
5
6
17, 18
Int. VCC Meas.
24
23
22
20–24
Function
0 = FAN1, 1 = AIN1
0 = FAN2, 1 = AIN2
0 = 2.5 V, VCCP2, 1 = D2–, D2+
0 = 3.3 V, 1 = 5 V
0 = VID0, 1 = IRQ0
0 = VID1, 1 = IRQ1
0 = VID2, 1 = IRQ2
0 = VID0 to VID4, 1 = Interrupt Inputs
Table III. A/D Output Code vs. VIN
Input Voltage
+12 VIN
<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
+5 VIN
<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
VCC (3.3 V)
<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
VCC (5 V)
<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
4.000–4.063 1.666–1.692 1.100–1.117 1.666–1.692
8.000–8.063 3.330–3.560 2.200–2.217 3.330–3.560
12.000–12.063 5.000–5.026 3.300–3.317 5.000–5.026
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
15.563–15.625 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
>15.938
>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
4.314–4.331
4.331–4.348
4.348–4.366
4.366–4.383
>4.383
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
+2.5 VIN
<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
+VCCP1/2
<0.014
0.014–0.028
0.028–0.042
0.042–0.056
0.056–0.070
0.070–0.084
0.084–0.098
0.098–0.112
0.112–0.126
0.900–0.914
1.800–1.814
2.700–2.714
3.445–3.459
3.459–3.473
3.473–3.487
3.487–3.501
3.501–3.515
3.515–3.529
3.529–3.543
3.543–3.558
3.558–3.572
3.572–3.586
>3.586
AIN(1/2)
<0.010
0.010–0.019
0.019–0.029
0.029–0.039
0.039–0.049
0.049–0.058
0.058–0.068
0.068–0.078
0.078–0.087
0.625–0.635
1.250–1.260
1.875–1.885
2.392–2.402
2.402–2.412
2.412–2.422
2.422–2.431
2.431–2.441
2.441–2.451
2.451–2.460
2.460–2.470
2.470–2.480
2.480–2.490
>2.490
A/D Output
Decimal
Binary
0
00000000
1
00000001
2
00000010
3
00000011
4
00000100
5
00000101
6
00000110
7
00000111
8
00001000
64 (1/4-Scale) 01000000
128 (1/2-Scale) 10000000
192 (3/4-Scale) 11000000
245
11110101
246
11110110
247
11110111
248
11111000
249
11111001
250
11111010
251
11111011
252
11111100
253
11111101
254
11111110
255
11111111
REV. B
–11–
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