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ADS8671 Datasheet(PDF) 14 Page - Texas Instruments

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Part No. ADS8671
Description  14-Bit, High-Speed, Single-Supply, SAR ADC Data Acquisition System with Programmable, Bipolar Input Ranges
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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ADS8671 Datasheet(HTML) 14 Page - Texas Instruments

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Output Codes
0
15000
30000
45000
60000
75000
8191
8192
8193
8194
D001
Output Codes
0
15000
30000
45000
60000
75000
8192
8193
8194
D002
Free- Air Temperature (qC)
-40
-7
26
59
92
125
-400
-200
0
200
400
D003
±12.288 V
±10.24 V
±6.144 V
±5.12 V
±2.56 V
0-12.288 V
0-10.24 V
0-6.144 V
0-5.12 V
Input Impedance (M:)
0
200
400
600
800
1000
1200
1400
1600
1.02 1.06
1.1
1.14 1.18 1.22 1.26
1.3
1.34 1.38
D004
Input Voltage (V)
-12.288
-8.192
-4.096
0
4.096
8.192
12.288
-15
-9
-3
3
9
15
D001
± 12.288 V
± 10.24 V
± 6.144 V
± 5.12 V
± 2.56 V
0-12.288 V
0-10.24 V
0-6.144 V
0-5.12 V
Input Voltage (V)
-12.288
-8.192
-4.096
0
4.096
8.192
12.288
-15
-9
-3
3
9
15
D002
-40C
25C
125C
14
ADS8671, ADS8675
SBAS779 – DECEMBER 2016
www.ti.com
Product Folder Links: ADS8671 ADS8675
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
6.11 Typical Characteristics
at TA = 25°C, AVDD = 5 V, DVDD = 3 V, VREF = 4.096 V (internal), and maximum throughput (unless otherwise noted)
Figure 9. Input I-V Characteristic Across Input Ranges
Range = ±12.288 V
Figure 10. Input I-V Characteristic Across Temperature
Figure 11. Input Impedance Drift vs Temperature
Number of samples = 3398
Figure 12. Typical Distribution of Input Impedance
Mean = 8192, sigma = 0.03, input = 0 V
Figure 13. DC Histogram for Mid-Scale Inputs (±12.288 V)
Mean = 8192.68, sigma = 0.47, input = 0 V
Figure 14. DC Histogram for Mid-Scale Inputs (±10.24 V)


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