ADAQ7980 datasheet(19/49 Pages) AD

19 / 49 page

Data Sheet

ADAQ7980/ADAQ7988

Rev. 0 | Page 19 of 49

100

–60

–110

–80

–70

–90

–100

–120

1100

FREQUENCY (kHz)

SINAD

THD

Figure 17. SINAD and THD vs. Frequency

93.0

90.5

92.0

92.5

91.5

91.0

90.0

–55

125

–15

565

105

–35

TEMPERATURE (°C)

SNR

SINAD

Figure 18. SNR and SINAD vs. Temperature

–104.0

–105.0

–105.2

–105.6

–105.4

–105.8

–104.4

–104.2

–104.6

–104.8

–106.0

–55

125

105

–15

–35

TEMPERATURE (°C)

Figure 19. THD vs. Temperature

–6

–9

–3

–12

100

FREQUENCY (MHz)

V+ = +7V

V− = −2V

VOUT = 20mV p-p

G = +2

G = +1, RF = 0

G = –1

0.1

Figure 20. ADC Driver Small Signal Frequency Response for Various Gains

–6

–9

–3

–12

100

FREQUENCY (MHz)

20mV p-p

G = +1

V+ = +7V, V– = –2V

V+ = +5V, V– = 0V

0.1

Figure 21. ADC Driver Small Signal Frequency Response for Various Supply

Voltages

–6

–3

–9

100

FREQUENCY (MHz)

2V p-p

G = +1

V+ = +7V

V− = −2V

+125°C

+25°C

–40°C

–55°C

0.1

Figure 22. Large Signal Frequency Response for Various Temperatures

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