CC2652R datasheet(36/58 Pages) TI

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7.16.6 ADC Performance

Frequency [kHz]

ENOB vs. Input Frequency

0.2

0.3

0.5 0.7

4 5 6 7 8 10

30 40 50

70 100

9.6

9.9

10.2

10.5

10.8

11.1

11.4

D061

Internal Reference, No Averaging

Internal Unscaled Reference, 14-bit Mode

Figure 7-23. ENOB vs. Input Frequency

Frequency [kHz]

ENOB vs. Sampling Frequency

Vin = 3.0 V Sine wave, Internal reference,

Fin = Fs / 10

5 6 7 8 10

40 50

100

200

9.8

9.85

9.9

9.95

10.05

10.1

10.15

10.2

D062

Figure 7-24. ENOB vs. Sampling Frequency

ADC Code

INL vs. ADC Code

Vin = 3.0 V Sine wave, Internal reference,

200 kSamples/s

400

800

1200

1600

2000

2400

2800

3200

3600

4000

-1.5

-1

-0.5

0.5

1.5

D064

Figure 7-25. INL vs. ADC Code

ADC Code

DNL vs. ADC Code

Vin = 3.0 V Sine wave, Internal reference,

200 kSamples/s

400

800

1200

1600

2000

2400

2800

3200

3600

4000

-0.5

0.5

1.5

2.5

D065

Figure 7-26. DNL vs. ADC Code

Temperature [°C]

ADC Accuracy vs. Temperature

Vin = 1 V, Internal reference,

200 kSamples/s

-40

-30

-20

-10

100

1.001

1.002

1.003

1.004

1.005

1.006

1.007

1.008

1.009

1.01

D066

Figure 7-27. ADC Accuracy vs. Temperature

Voltage [V]

ADC Accuracy vs. VDDS

Vin = 1 V, Internal reference,

200 kSamples/s

1.8

2.2

2.4

2.6

2.8

3.2

3.4

3.6

3.8

1.001

1.002

1.003

1.004

1.005

1.006

1.007

1.008

1.009

1.01

D067

Figure 7-28. ADC Accuracy vs. Supply Voltage (VDDS)

CC2652R7

SWRS253 – MAY 2021

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