ADS7044_16 Datasheet, PDF (11/41 Pages) Texas Instruments – Ultra-Low Power, Ultra-Small Size, 12-Bit, 1-MSPS, SAR ADC

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ADS7044
SBAS682D – NOVEMBER 2014 – REVISED DECEMBER 2015
Typical Characteristics (continued)
At T_A = 25°C, AVDD = 3 V, DVDD = 1.8 V, and f_SAMPLE = 1 MSPS, unless otherwise noted.
12
12
10
10
8
8
6
6
4
4
2
Calibrated
2
Calibrated
0
0
±2
±2
±4
±4
±6
Un-Calibrated
±6
±8
±8
±10
±10
±12
±40
±7
26
59
92
125
±12
1.8
2.1
2.4
2.7
3
3.3
3.6
Free-Air Temperature (^oC)
C013
Reference Voltage (V)
C014
Figure 14. Offset vs Free-Air Temperature
0.2
Figure 15. Offset vs Reference Voltage (AVDD)
0.2
0.1
0.1
0
0
-0.1
-0.1
-0.2
±40
±7
26
59
92
125
Free-Air Temperature (^oC)
C015
Figure 16. Gain Error vs Free-Air Temperature
1
0.75
0.5
0.25
0
-0.25
-0.5
-0.75
-1
0 512
AVDD = 3 V
1024
1536
2048
Code
2560
3072
3584
4096
C017
Figure 18. Typical DNL
-0.2
1.8
2.1
2.4
2.7
3
3.3
3.6
Reference Voltage (V)
C016
Figure 17. Gain Error vs Reference Voltage (AVDD)
1
0.75
0.5
0.25
0
-0.25
-0.5
-0.75
-1
0 512
AVDD = 3 V
1024
1536
2048
Code
2560
3072
3584
4096
C018
Figure 19. Typical INL
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