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)
DifferentialLinearity(LSBs)
3.2 4.74.23.7 5.2
MaximumDNL
MinimumDNL
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)
IntegralLinearity(LSBs)
3.2 4.74.23.7 5.2
MaximumINL
MinimumINL
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)°
DifferentialLinearity(LSBs)
-25 20
AVDD=3V
5-10 35 50 65 80 95 110
MaximumDNL
MinimumDNL
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)°
IntegralLinearity(LSBs)
-25 20
AVDD=3V
5-10 35 50 65 80 95 110
MaximumINL
MinimumINL
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)
DifferentialLinearity(LSBs)
3 4
AVDD=5V
3.5 4.5
MaximumDNL
MinimumDNL
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)
IntegralLinearity(LSBs)
3 4
AVDD=5V
3.5 4.5
MaximumINL
MinimumINL
ADS7947
ADS7948
ADS7949
SLAS708 –SEPTEMBER 2010 www.ti.com
TYPICAL CHARACTERISTICS: ADS7947 (12-Bit)
At T
A
= +25°C, DVDD = 1.8V, V
REF
= 2.5V, and f
SAMPLE
= 2MSPS, unless otherwise noted.
DIFFERENTIAL LINEARITY vs INTEGRAL LINEARITY vs
ANALOG SUPPLY VOLTAGE ANALOG SUPPLY VOLTAGE
Figure 6. Figure 7.
DIFFERENTIAL LINEARITY vs TEMPERATURE INTEGRAL LINEARITY vs TEMPERATURE
Figure 8. Figure 9.
DIFFERENTIAL LINEARITY vs REFERENCE VOLTAGE INTEGRAL LINEARITY vs REFERENCE VOLTAGE
Figure 10. Figure 11.
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Product Folder Link(s): ADS7947 ADS7948 ADS7949