ADM1025ARQ ON Semiconductor, ADM1025ARQ Datasheet - Page 12

• Manufacturer Part Number: ADM1025ARQ
• Description: IC MONITOR SYS/VOLT 5CH 16QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1025ARQ

• Rohs Status: RoHS non-compliant
• Applications: PC's, PDA's
• Interface: I²C
• Voltage - Supply: 3 V ~ 5.5 V
• Package / Case: 16-QSOP
• Mounting Type: Surface Mount

ADM1025/ADM1025A
INPUT CIRCUITS
The internal structure for the analog inputs is shown in
Figure 14. Each input circuit consists of an input protection
diode, an attenuator, plus a capacitor to form a first order low-
pass filter that gives the input immunity to high frequency
noise.
Table 5. A/D Output Code vs. V
12 V
<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
IN
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
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
IN
IN
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
1.100−1.117
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
Input Voltage
CC
/3.3 V
IN
Rev. P5 | Page 12 of 21| www.onsemi.com
2.5 V
<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
IN
V
<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
CCPIN
Figure 14. Structure of Analog Inputs
Preliminary Technical Data
Decimal
0
1
2
3
4
5
6
7
8
64 (1/4 Scale)
128 (1/2 Scale)
192 (3/4 Scale)
245
246
247
248
249
250
251
252
253
254
255
A/D Output
Binary
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
0000 1000
0100 0000
1000 0000
1100 0000
1111 0101
1111 0110
1111 0111
1111 1000
1111 1001
1111 1010
1111 1011
1111 1100
1111 1101
1111 1110
1111 1111