AD79821 datasheet(9/24 Pages) AD

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AD7946

Rev. A | Page 9 of 24

REFERENCE VOLTAGE (V)

90.0

87.5

85.0

82.5

80.0

2.3

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

13.0

13.5

14.0

14.5

15.0

SNR

SINAD

ENOB

Figure 12. SNR, SINAD, and ENOB vs. Reference Voltage

TEMPERATURE (°C)

80.0

82.5

85.0

87.5

90.0

–55

–35

–15

105

125

REF = 5V

Figure 13. SNR vs. Temperature

FREQUENCY (kHz)

100

150

200

REF = 5V, –10dB

REF = 5V, –1dB

Figure 14. SINAD vs. Frequency

SFDR

THD

REFERENCE VOLTAGE (V)

–120

–115

–110

–105

–100

–95

–90

2.3

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

Figure 15. THD, SFDR vs. Reference Voltage

TEMPERATURE (°C)

–130

–120

–110

–100

–90

–55

–35

–15

105

125

REF = 5V

Figure 16. THD vs. Temperature

FREQUENCY (kHz)

–120

–110

–100

–90

–80

–70

–60

100

150

200

REF = 5V, –1dB

REF = 5V, –10dB

Figure 17. THD vs. Frequency

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