Datasheet

DAC2902
8
SBAS167C
www.ti.com
TYPICAL CHARACTERISTICS (continued)
T
A
= +25°C, +V
D
= +3.3V, +V
A
= +5V, differential transformer coupled, I
OUT
= 20mA, 50Ω double-terminated load, and SFDR up to Nyquist, unless otherwise noted.
I
VA
vs I
OUT
FS
I
OUT
FS (mA)
I
VA
(mA)
60
55
50
45
40
35
30
25
20
15
10
1051520250
SINGLE-TONE SFDR
Frequency (MHz)
Magnitude (dBm)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
4 8 12 16 200
f
CLOCK
= 52MSPS
f
OUT
= 5.23MHz
Amplitude = 0dBFS
SINGLE-TONE SFDR
Frequency (MHz)
Magnitude (dBm)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
10 20 30 40 500
f
CLOCK
= 100MSPS
f
OUT
= 20.2MHz
Amplitude = 0dBFS
DUAL-TONE SFDR
Frequency (MHz)
Magnitude (dBm)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
7.8 15.6 23.4
31.2
39.00
f
CLOCK
= 78MSPS
f
OUT
1 = 9.44MHz
f
OUT
2 = 10.44MHz
Amplitude = 0dBFS
FOUR-TONE SFDR
Frequency (MHz)
Magnitude (dBm)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
510
15
20 250
f
CLOCK
= 50MSPS
f
OUT
1 = 6.25MHz
f
OUT
2 = 6.75MHz
f
OUT
3 = 7.25MHz
f
OUT
4 = 7.75MHz
Amplitude = 0dBFS