Datasheet
INL (LSB)
Code
2.0
1.5
1.0
0.5
0
−
0.5
−
1.0
−
1.5
−
2.0
0
1536 2048 2560 3072 3584512 1024 4096
f
IN
= 5MHz
SNR (dBc, dBFS)
Input Amplitude (A)
100
90
80
70
60
50
40
30
20
10
0
−
70
−
60 −
30
−
20
−
10
−
50
−
40 0
f
IN
= 5MHz
SNR (dBFS)
SNR (dBc)
SFDR (dBc)
SNR (dBc, dBFS)
Input Amplitude (A)
100
90
80
70
60
50
40
30
20
10
0
−
70
−
60 −
30
−
20
−
10
−
50
−
40 0
f
IN
= 10MHz
SNR (dBFS)
SNR (dBc)
SFDR (dBc)
SFDR, SNR (dBFS)
Duty Cycle (%)
90
85
80
75
70
65
60
55
20
50 60 7030 40 80
f
IN
= 5MHz
SFDR
SNR
SFDR, SNR (dBFS)
Input Frequency (MHz)
95
90
85
80
75
70
65
60
55
5
20 25 30 35 40 4510 15 50
SFDR
SNR
SFDR, SNR, SINAD (dBFS)
Sample Rate (MSPS)
90
85
80
75
70
65
60
55
20
35 4025 30 45
SFDR
SNR
SINAD
f
IN
= 5MHz
ADS5270
www.ti.com
............................................................................................................................................... SBAS293F – JANUARY 2004 – REVISED JANUARY 2009
TYPICAL CHARACTERISTICS (continued)
Typical values are at T
A
= +25C, clock frequency = maximum specified, 50% clock duty cycle, AVDD = 3.3V, LVDD = 3.3V,
– 1dBFS, I
SET
= 56.2k Ω , internal voltage reference, and LVDS buffer current at 3.5mA per channel, unless otherwise noted.
INTEGRAL NONLINEARITY SWEPT INPUT POWER
Figure 7. Figure 8.
SWEPT INPUT POWER DYNAMIC PERFORMANCE vs DUTY CYCLE
Figure 9. Figure 10.
DYNAMIC PERFORMANCE vs INPUT FREQUENCY DYNAMIC PERFORMANCE vs SAMPLE RATE
Figure 11. Figure 12.
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