Datasheet

−2.5
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
2.5
2.7 3.2 3.7 4.2 4.7 5.2 5.7
AVDD (V)
Offset Error (LSB)
G025
−2.5
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
2.5
±2.5V ±5V ±10V 0−5V 0−10V
Signal Range
Offset Error (LSB)
G026
−2.5
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
2.5
2 2.2 2.4 2.6 2.8 3
Reference Voltage (V)
Offset Error (LSB)
G027
−2.5
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
2.5
0 1 2 3 4 5 6 7
Channel Number
Offset Error (LSB)
G028
−2.5
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
2.5
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
Offset Error (LSB)
G029
−2.5
−2
−1.5
−1
−0.5
0
0.5
1
1.5
2
2.5
2.5 5 7.5 10 12.5 15
HVDD, Positive High-Voltage Supply (V)
Offset Error (LSB)
G030
ADS8634
ADS8638
SBAS541A –MAY 2011– REVISED AUGUST 2011 www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, internal reference = 2.5V, channel 0, range = ±2.5V, AVDD = 2.7V, DVDD = 1.8V, HVDD = 10V, HVSS
= –10V, and f
SAMPLE
= 1MSPS, unless otherwise noted.
OFFSET ERROR vs ANALOG SUPPLY VOLTAGE OFFSET ERROR vs SIGNAL RANGE
Figure 15. Figure 16.
OFFSET ERROR vs REFERENCE VOLTAGE OFFSET ERROR vs CHANNEL NUMBER
Figure 17. Figure 18.
OFFSET ERROR vs FREE-AIR TEMPERATURE OFFSET ERROR vs POSITIVE HIGH-VOLTAGE SUPPLY
Figure 19. Figure 20.
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