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)
G012
−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
G014
−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)
G013
−6
−4
−2
0
2
4
6
2.7 3.2 3.7 4.2 4.7 5.2 5.7
AVDD, Analog Supply Voltage (V)
Gain Error (LSB)
G015
−6
−4
−2
0
2
4
6
2.5 3 3.5 4 4.5 5 5.5
Reference Voltage (V)
Gain Error (LSB)
AVDD = 5.25 V
G017
−6
−4
−2
0
2
4
6
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
Gain Error (LSB)
G016
ADS7945
ADS7946
www.ti.com SBAS539B –JUNE 2011– REVISED SEPTEMBER 2011
TYPICAL CHARACTERISTICS: ADS7945 (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 7. Figure 8.
OFFSET ERROR vs FREE-AIR TEMPERATURE GAIN ERROR vs ANALOG SUPPLY VOLTAGE
Figure 9. Figure 10.
GAIN ERROR vs REFERENCE VOLTAGE GAIN ERROR vs FREE-AIR TEMPERATURE
Figure 11. Figure 12.
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