ADC32RF52 datasheet(21/108 Pages) TI

21 / 108 page

6.10 Typical Characteristics (continued)

Typical values are at TA = 25°C, ADC sampling rate = 1.5 GSPS, 50% clock duty cycle, AVDD18 = 1.8 V, AVDD12, CLKVDD,

DVDD = 1.2 V and –1-dBFS differential input, Dither = DIS, unless otherwise noted

Ambient Temperature (degC)

-40 -30 -20 -10

100

105

110

SNR (1x)

SNR (2x)

SNR (4x)

HD23 (1x)

HD23 (2x)

HD23 (4x)

Non HD23 (1x)

Non HD23 (2x)

Non HD23 (4x)

FIN = 900 MHz, AIN = -1 dBFS, Dither = EN

Figure 6-43. AC Performance vs Temperature

Code

2048

4096

6144

8192

-5

-4

-3

-2

-1

1x AVG

2x AVG

4x AVG

FIN = 900 MHz, Dither = DIS, 13-bit output

Figure 6-44. INL vs Code

Code

2048

4096

6144

8192

-1

-0.75

-0.5

-0.25

0.25

0.5

0.75

1x AVG

2x AVG

4x AVG

FIN = 900 MHz, Dither = DIS, 13-bit output

Figure 6-45. DNL vs Code

Output Code

2.5%

7.5%

10%

12.5%

15%

17.5%

20%

22.5%

25%

27.5%

2035

2038

2041

2044

2047

2050

2053

2056

1x AVG

2x AVG

4x AVG

Dither = DIS

Figure 6-46. DC Offset Histogram

Frequency (MHz)

0.1

100

500

FIN = 900 MHz

FIN = 1800 MHz

AIN = -1 dBFS, 1x AVG, Dither = DIS

Figure 6-47. CMRR

Sampling Rate (MSPS)

500

600

700

800

900 1000 1100 1200 1300 1400 1500

0.25

0.5

0.75

1.25

1.5

1.75

2.25

AVDD18 (1x)

AVDD12 (1x)

DVDD (1x)

CLKVDD (1x)

AVDD18 (2x)

AVDD12 (2x)

DVDD (2x)

CLKVDD (2x)

AVDD18 (4x)

AVDD12 (4x)

DVDD (4x)

CLKVDD (4x)

DDC Bypass

Figure 6-48. Current vs Sampling Rate vs Averaging

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ADC32RF52

SBASAI6 – SEPTEMBER 2023

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