Texas Instruments SimpleLink CC2651R3SIPA Manual page 37

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8.17.6 ADC Performance
11.4
Internal Reference, No Averaging
Internal Unscaled Reference, 14-bit Mode
11.1
10.8
10.5
10.2
9.9
9.6
0.2 0.3 0.5 0.7 1 2
Figure 8-25. ENOB vs.
Input Frequency
Vin = 3.0 V Sine wave, Internal reference, 200 kSamples/s
1.5
1
0.5
0
-0.5
-1
-1.5
0 400 800 1200 1600
Figure 8-27. INL vs.
ADC Code
Vin = 1 V, Internal reference, 200 kSamples/s
1.01
1.009
1.008
1.007
1.006
1.005
1.004
1.003
1.002
1.001
1
-40 -30 -20 -10 0 10
Figure 8-29. ADC Accuracy vs.
Temperature
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3 4 5 6 7 8 10 20 30 40 50 70 100
Frequency [kHz]
2000 2400 2800 3200 3600
ADC Code
20 30 40 50 60 70 80 90
Temperature [°C]
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Vin = 3.0 V Sine wave, Internal reference, Fin = Fs / 10
10.2
10.15
10.1
10.05
10
9.95
9.9
9.85
9.8
1 2 3 4 5 6 7 8 10
Figure 8-26. ENOB vs.
Sampling Frequency
Vin = 3.0 V Sine wave, Internal reference, 200 kSamples/s
2.5
2
1.5
1
0.5
0
-0.5
4000 0 400 800 1200
Figure 8-28. DNL vs.
Vin = 1 V, Internal reference, 200 kSamples/s
1.01
1.009
1.008
1.007
1.006
1.005
1.004
1.003
1.002
1.001
1
1.8 2 2.2
100
Figure 8-30. ADC Accuracy vs.
Supply Voltage (VDDS)
CC2651R3SIPA
CC2651R3SIPA
20 30 40 50 70 100
Frequency [kHz]
1600 2000 2400 2800 3200 3600
ADC Code
ADC Code
2.4 2.6 2.8 3 3.2 3.4
Voltage [V]
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200
4000
3.6
37