Datasheet

AD9760
–9–
REV. B
FREQUENCY – MHz
SFDR – dBc
90
80
50
0.1 100
110
60
70
5MSPS
25MSPS
50MSPS
100MSPS
125MSPS
Figure 21. SFDR vs. f
OUT
@ 0 dBFS
FREQUENCY – MHz
SFDR – dBc
85
50
0.00 5.00 25.0010.00 15.00 20.00
80
75
70
60
55
65
0dBFS
–6dBFS
–12dBFS
Figure 24. SFDR vs. f
OUT
@ 50 MSPS
A
OUT
– dBFS
SFDR – dBc
90
50
–30 –25 0
–20 –15 –10 –5
80
60
70
455kHz
@ 5MSPS
2.27MHz
@ 25MSPS
4.55MHz
@ 50MSPS
40
9.1MHz
@ 100MSPS
11.37MHz
@ 125MSPS
Figure 27. Single-Tone SFDR vs. A
OUT
@ f
OUT
= f
CLOCK
/11
Typical AC Characterization Curves @ +3 V Supplies
(AVDD = +3 V, DVDD = +3 V, I
OUTFS
= 20 mA, 50 ⍀ Doubly Terminated Load, Differential Output, T
A
= +25ⴗC, SFDR up to Nyquist, unless otherwise noted)
FREQUENCY – MHz
SFDR – dBc
85
50
0.00 2.50
0.50 1.00 1.50 2.00
80
75
70
60
55
65
0dBFS
–6dBFS
–12dBFS
Figure 22. SFDR vs. f
OUT
@ 5 MSPS
FREQUENCY – MHz
SFDR – dBc
85
50
0.00 10.00 50.00
20.00 30.00 40.00
80
75
70
60
55
65
0dBFS
–6dBFS
–12dBFS
Figure 25. SFDR vs. f
OUT
@ 100 MSPS
A
OUT
– dBFS
SFDR – dBc
90
50
–30 –25 0
–20 –15 –10 –5
80
60
70
1MHz
@ 5MSPS
2.5MHz
@ 25MSPS
10MHz
@ 50MSPS
20MHz
@ 100MSPS
25MHz
@ 125MSPS
40
Figure 28. Single-Tone SFDR vs.
A
OUT
@ f
OUT
= f
CLOCK
/5
FREQUENCY – MHz
SFDR – dBc
85
50
0.00 2.00 12.004.00 6.00 8.00 10.00
80
75
70
60
55
65
0dBFS
–6dBFS
–12dBFS
Figure 23. SFDR vs. f
OUT
@ 25 MSPS
FREQUENCY – MHz
SFDR – dBc
85
50
0.00 10.00 60.0020.00 30.00 40.00 50.00
80
75
70
60
55
65
0dBFS
–6dBFS
–12dBFS
Figure 26. SFDR vs. f
OUT
@ 125 MSPS
A
OUT
– dBFS
SFDR – dBc
80
40
–30 –25 0
–20 –15 –10 –5
70
50
60
90
0.675/0.725MHz
@ 5MSPS
3.38/3.63MHz
@ 25MSPS
6.75/7.25MHz
@ 50MSPS
13.5/14.5MHz
@ 100MSPS
16.9/18.1MHz
@ 125MSPS
Figure 29. Dual-Tone SFDR vs. A
OUT
@ f
OUT
= f
CLOCK
/7