Datasheet

67
67.5
68
68.5
69
69.5
70
0 50 100 150 200 250 300 350 400
Input Frequency (MHz)
SNR (dBFS)
60
64
68
72
76
80
84
88
92
96
0 0.5 1 1.5 2 2.5 3 3.5
Gain (dB)
SFDR (dBc)
150MHz
170MHz
220MHz
300MHz
400MHz
−120
−100
−80
−60
−40
−20
0
0 25 50 75 100 125
Frequency (MHz)
Amplitude (dB)
Each Tone at
−36dBFS Amplitude
f
IN1
= 185MHz
f
IN2
= 190MHz
2−Tone IMD = 89.7dBFS
SFDR = 106.4dBFS
60
65
70
75
80
85
90
95
0 50 100 150 200 250 300 350 400
Input Frequency (MHz)
SFDR (dBc)
ADS41B29
ADS41B49
www.ti.com SBAS486E – NOVEMBER 2009–REVISED JULY 2012
TYPICAL CHARACTERISTICS: ADS41B49 (continued)
At +25°C, AVDD = 1.8V, AVDD_BUF = 3.3V, DRVDD = 1.8V, maximum rated sampling frequency, sine wave input clock,
1.5V
PP
differential clock amplitude, 50% clock duty cycle, –1dBFS differential analog input, DDR LVDS output interface, and
32k-point FFT, unless otherwise noted.
FFT FOR TWO-TONE INPUT SIGNAL SFDR vs INPUT FREQUENCY
Figure 16. Figure 17.
SNR vs INPUT FREQUENCY SFDR ACROSS GAIN AND INPUT FREQUENCY
Figure 18. Figure 19.
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Product Folder Link(s): ADS41B29 ADS41B49