Datasheet

8
6
4
2
0
-2
-4
-6
-8
V (%ofFSR)
IN
INL(ppmofFSR)
-100 -50 0 50 100
PGA=128
DataRate=20SPS
-40°C
+25 C°
+105 C°
-10°C
8
6
4
2
0
-2
-4
-6
-8
V (%ofFSR)
IN
INL(ppmofFSR)
-100 -50 0 50 100
PGA=1
DataRate=2kSPS
- °40 C
+25 C°
+105 C°
- °10 C
3.0
2.5
2.0
1.5
1.0
0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
-
-
-
-
-
-
Temperature( C)°
DataRateError(%)
-40 -20 0 20 40 60 80 100 120
DVDD=5V
DVDD=3.3V
130
125
120
115
110
105
100
95
90
85
80
Temperature( C)°
CMRR(dB)
-40 -20 0 20 40 60 80 100 120
PGA=1
PGA=32
PGA=128
2.050
2.049
2.048
2.047
2.046
Temperature( C)°
OutputVoltage(V)
-40 -20 0 20 40 60 80 100 120
14Units
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
0.994
0.993
0.992
0.991
AVDD(V)
NormalizedOutputCurrent
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
750 Am
250 Am
1.5mA
500 Am
100 Am
1mA
50 Am
IDACCurrentSettings
ADS1246
ADS1247
ADS1248
SBAS426G –AUGUST 2008–REVISED OCTOBER 2011 www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, AVDD = 5V, V
REF
= 2.5V, and AVSS = 0V, unless otherwise noted.
INTEGRAL NONLINEARITY vs INPUT SIGNAL INTEGRAL NONLINEARITY vs INPUT SIGNAL
Figure 35. Figure 36.
DATA RATE ERROR vs TEMPERATURE
(Using Internal Oscillator) CMRR vs TEMPERATURE
Figure 37. Figure 38.
INTERNAL V
REF
vs TEMPERATURE IDAC LINE REGULATION
Figure 39. Figure 40.
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