Datasheet

DAC2902
7
SBAS167C
www.ti.com
SFDR vs f
OUT
AT 125MHz
f
OUT
(MHz)
SFDR (dBc)
85
80
75
70
65
60
55
50
2010 30 40 50 600
–6dBFS
0dBFS
SFDR AT 125MSPS vs TEMPERATURE
Temperature (°C)
SFDR (dBc)
90
85
80
75
70
65
60
55
50
0–20 25 50 70 85–40
2MHz
40MHz
10MHz
20MHz
SINAD vs f
CLK
AND I
OUT
AT 5MHz
f
CLK
(MSPS)
SINAD (dBc)
70
67.5
65
62.5
60
40 60 80 100 120 14020
20mA
10mA
5mA
GAIN AND OFFSET DRIFT
Temperature (°C)
Gain Error (% FS)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
Offset Error (% FS)
0.004
0.003
0.002
0.001
0
–0.001
–0.002
–0.003
–0.004
0–20 20 40 60 80 85–40
Offset Error
Gain Error
SFDR vs I
OUT
FS AND f
OUT
AT 78MSPS, 0dBFS
f
OUT
(MHz)
SFDR (dBc)
80
78
76
74
72
70
68
66
64
62
60
1051520250
I
OUT
FS = 20mA
I
OUT
FS = 10mA
I
OUT
FS = 2mA
I
OUT
FS = 5mA
I
VD
vs RATIO AT +V
D
= +3.3V
Ratio (F
OUT
/F
CLK
)
I
VD
(mA)
25
20
15
10
5
0
0.100.05 0.15 0.20 0.25 0.30 0.35 0.40 0.450.00
125MSPS
100MSPS
78MSPS
52MSPS
26MSPS
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.