Datasheet

−4
−3
−2
−1
0
1
2
3
4
2.7 3.2 3.7 4.2 4.7 5.2 5.7
AVDD, Analog Supply Voltage (V)
Offset Error (LSB)
G049
−4
−3
−2
−1
0
1
2
3
4
2.5 3 3.5 4 4.5 5 5.5
Reference Voltage (V)
Offset Error (LSB)
AVDD = 5.25 V
G051
−4
−3
−2
−1
0
1
2
3
4
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
Offset Error (LSB)
G050
−4
−3
−2
−1
0
1
2
3
4
2.7 3.2 3.7 4.2 4.7 5.2 5.7
AVDD, Analog Supply Voltage (V)
Gain Error (LSB)
G052
−4
−3
−2
−1
0
1
2
3
4
2.5 3 3.5 4 4.5 5 5.5
Reference Voltage (V)
Gain Error (LSB)
AVDD = 5.25 V
G054
−4
−3
−2
−1
0
1
2
3
4
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
Gain Error (LSB)
G053
ADS7945
ADS7946
SBAS539B –JUNE 2011– REVISED SEPTEMBER 2011 www.ti.com
TYPICAL CHARACTERISTICS: ADS7946 (continued)
At T
A
= +25°C, AVDD = 5 V, DVDD = 1.8 V, V
REF
= 2.5 V, and f
SAMPLE
= 2 MSPS, unless otherwise noted.
OFFSET ERROR vs ANALOG SUPPLY VOLTAGE OFFSET ERROR vs REFERENCE VOLTAGE
Figure 44. Figure 45.
OFFSET ERROR vs FREE-AIR TEMPERATURE GAIN ERROR vs ANALOG SUPPLY VOLTAGE
Figure 46. Figure 47.
GAIN ERROR vs REFERENCE VOLTAGE GAIN ERROR vs FREE-AIR TEMPERATURE
Figure 48. Figure 49.
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