Datasheet

1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
2.7
5.7
AVDD,AnalogSupplyVoltage(V)
OffsetError(LSBs)
3.2 4.74.23.7 5.2
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
-40
125
Free-AirTemperature( C)°
OffsetError(LSBs)
-25 20
AVDD=3V
5-10 35 50 65 80 95 110
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
2.5
5
ReferenceVoltage(V)
OffsetError(LSBs)
3 4
AVDD=5V
3.5 4.5
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
2.7
5.7
AVDD,AnalogSupplyVoltage(V)
GainError(LSBs)
3.2 4.74.23.7 5.2
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
-40
125
Free-AirTemperature( C)°
GainError(LSBs)
-25 20
AVDD=3V
5-10 35 50 65 80 95 110
1
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
0.8
1
-
-
-
-
-
2.5
5
ReferenceVoltage(V)
GainError(LSBs)
3 4
AVDD=5V
3.5 4.5
ADS7947
ADS7948
ADS7949
www.ti.com SLAS708 –SEPTEMBER 2010
TYPICAL CHARACTERISTICS: ADS7947 (12-Bit) (continued)
At T
A
= +25°C, DVDD = 1.8V, V
REF
= 2.5V, and f
SAMPLE
= 2MSPS, unless otherwise noted.
OFFSET ERROR vs ANALOG SUPPLY VOLTAGE OFFSET ERROR vs TEMPERATURE
Figure 12. Figure 13.
OFFSET ERROR vs REFERENCE VOLTAGE GAIN ERROR vs ANALOG SUPPLY VOLTAGE
Figure 14. Figure 15.
GAIN ERROR vs TEMPERATURE GAIN ERROR vs REFERENCE VOLTAGE
Figure 16. Figure 17.
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