ADS5474_08 Datasheet, PDF (17/38 Pages) Texas Instruments – 14-Bit, 400-MSPS Analog-to-Digital Converter

ADS5474
www.ti.com......................................................................................................................................................... SLAS525A – JULY 2007 – REVISED AUGUST 2008
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, sampling rate = 400 MSPS, 50% clock duty cycle, 3-V_PP differential sinusoidal clock, analog input amplitude =
–1 dBFS, AVDD5 = 5 V, AVDD3 = 3.3 V, and DVDD3 = 3.3 V, unless otherwise noted.
SNR vs INPUT FREQUENCY AND SAMPLING FREQUENCY
400
70
350
68
69
300
250
200
150
100 ₇₀
40
10
70
69
100
54
56
58
70
68
69
68
69
68
67
200
300
400
f_IN - Input Frequency - MHz
60
62
64
66
67
66
500
600
68
70
400
350
300
250
200
150
100
40
10
50
SNR - dBFS
Figure 29.
SFDR vs INPUT FREQUENCY AND SAMPLING FREQUENCY
80
85
80
77
73
77
70
85
85
80
85
73
77
70
80
77
65
65
85
100
55
73
85
80
77
70
200
300
400
f_IN - Input Frequency - MHz
60
65
70
75
80
65
500
85
60
600
90
SFDR - dBc
Figure 30.
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