Texas Instruments ADS869 Series Manual page 14

ADS8694, ADS8698
SBAS686 – JULY 2015
Typical Characteristics (continued)
At T = 25°C, AVDD = 5 V, DVDD = 3 V, internal reference V
A
2
Maximum
1
0
±1
±2
±40 ±7
Free-AirTemperature (
Range = ±0.625 × V
Figure 20. INL vs Temperature (±0.625 × V
2
Maximum
1
0
Minimum
±1
±2
±40 ±7
Free-Air Temperature (
Range = 1.25 × V
Figure 22. INL vs Temperature (1.25 × V
80
60
40
20
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
Offset Drift (ppm/
Range = ±2.5 × V
Figure 24. Typical Histogram for Offset Drift
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Minimum
26 59 92
o
C)
REF
)
REF
26 59 92
o C)
REF
)
REF
o C)
REF
Product Folder Links:
= 4.096 V, and f
REF SAMPLE
2
1
0
±1
±2
125
±40 ±7
C020
Figure 21. INL vs Temperature (2.5 × V
1
0.75
0.5
0.25
0
-0.25
-0.5
-0.75
-1
125
±40 ±7
C022
Temperature Across Input Ranges
1
0.75
0.5
0.25
0
-0.25
-0.5
-0.75
-1
±40 ±7
C025
Figure 25. Offset Error vs Temperature Across Channels
ADS8694 ADS8698
= 500 kSPS, unless otherwise noted.
Maximum
Minimum
26 59 92
o
Free-Air Temperature ( C)
Range = 2.5 × V
REF
----- ± 2.5*V
----- ] 1.25*V
----- ] 0.625*V
----- + 2.5*V
-----+1.25*V
26 59 92
Free-Air Temperature ( o C)
Figure 23. Offset Error vs
......CH0, .......CH1, ......CH2,
.......CH3, ......CH4, .......CH5,
........CH6, .......CH7
26 59 92
o
Free-Air Temperature ( C)
Range = ±2.5 × V
REF
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125
C021
)
REF
REF
REF
REF
REF
REF
125
C024
125
C026