ADS7881 Datasheet, PDF (18/26 Pages) Texas Instruments – 12-BIT, 4-MSPS LOW POWER SAR ANALOG-TO-DIGITAL CONVERTER

ADS7881
SLAS400 − SEPTEMBER 2003
2.505
2.5045
2.504
INTERNAL REFERENCE OUTPUT
vs
SUPPLY VOLTAGE
+VBD = 5 V,
TA = 255C
2.5035
2.503
2.5025
2.502
2.5015
2.501
2.5005
2.5
4.75 4.8 4.85 4.9 4.95 5 5.05 5.1 5.15 5.2 5.25
+VA − Supply Voltage − V
Figure 33
1
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
0
DIFFERENTIAL NONLINEARITY
+VA = 5 V,
+VBD = 5 V,
TA = 25°C,
Sample Rate = 4 MSPS
1028
2056
Code
3084
Figure 34
1
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
0
INTEGRAL NONLINEARITY
+VA = 5 V,
+VBD = 5 V,
TA = 25°C,
Sample Rate = 4 MSPS
FIGURE 36
1028
2056
3084
Code
Figure 35
18
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4096
4096