ADS1118_13 Datasheet, PDF (8/38 Pages) Texas Instruments – Ultra-Small, Low-Power, SPI™-Compatible, 16-Bit Analog-to-Digital Converter and Temperature Sensor with Internal Reference

ADS1118
SBAS457C – OCTOBER 2010 – REVISED FEBRUARY 2013
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TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C and VDD = 3.3 V, unless otherwise noted.
INL vs INPUT SIGNAL
5
4
FS = ±2.048V
VDD = 3.3V
3 DR = 8SPS
2 ^{Best Fit}
INL vs INPUT SIGNAL
10
8
−40°C
+25°C
6
+125°C
4
1
2
0
0
−1
−2
−2
−3
−40°C
−4
+25°C
+125°C
−5
−2 −1.5 −1 −0.5 0 0.5 1 1.5 2
Input Signal (V)
G011
Figure 8.
−4 _{FS = ±0.512V}
−6 VDD = 3.3V
−8
DR = 8SPS
Best Fit
−10
−0.5 −0.4 −0.2 −0.1 0
0.1 0.2 0.4 0.5
Input Signal (V)
G012
Figure 9.
INL vs INPUT SIGNAL
5
4
FS = ±2.048V
VDD = 5V
3 DR = 8SPS
2 ^{Best Fit}
1
0
−1
−2
−3
−40°C
−4
+25°C
+125°C
−5
−2 −1.5 −1 −0.5 0 0.5 1 1.5 2
Input Signal (V)
G013
Figure 10.
INL vs INPUT SIGNAL
10
8
−40°C
+25°C
6
+125°C
4
2
0
−2
−4 _{FS = ±0.512V}
−6 VDD = 5V
−8
DR = 8SPS
Best Fit
−10
−0.5 −0.4 −0.2 −0.1 0
0.1 0.2 0.4 0.5
Input Signal (V)
G014
Figure 11.
INL vs TEMPERATURE
12
FS = ±2.048 V
10
DR = 8 SPS
Best Fit
VDD = 2.0 V
VDD = 3.3 V
VDD = 5.0 V
8
6
4
2
0
−60 −40 −20
0 20 40 60 80
Temperature (°C)
Figure 12.
100 120 140
G015
INL vs DATA RATE
16
FS = ±2.048V
14 _{Best Fit}
12
10
8
6
4
2
0
8
16 32 64 128 250
Data Rate (SPS)
Figure 13.
−40°C
+25°C
+125°C
475
860
G016
8
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