Datasheet

6
LTC1746
1746f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Grounded Input Histogram
SNR vs Sample Rate,
Input Frequency = 5MHz, –1dB
CODE
8167
0
COUNT
5000
10000
15000
20000
25000
8168
8169 8170 8171
1746 G10
8172
SAMPLE RATE (Msps)
0
66
SNR (dBFS)
68
70
72
74
78
10
20 30 40
1746 G11
50 60
76
67
69
71
73
77
75
3.2V RANGE
2V RANGE
SAMPLE RATE (Msps)
0
50
SFDR (dB)
60
70
80
90
110
10
20 30 40
1746 G12
50 60
100
3.2V RANGE
2V RANGE
SFDR vs Sample Rate,
Input Frequency = 5MHz, –1dB
SNR vs Input Frequency and
Amplitude 3.2V Range
SNR vs Input Frequency and
Amplitude 2V Range
INPUT FREQUENCY (MHz)
50
SNR (dB)
60
70
80
55
65
75
20 40 60 80
1746 G13
10010030507090
–1dBFS
–6dBFS
–20dBFS
INPUT FREQUENCY (MHz)
50
SNR (dB)
60
70
80
55
65
75
20 40 60 80
1746 G14
10010030507090
–1dBFS
–6dBFS
–20dBFS
SFDR vs Input Frequency
and Amplitude, 3.2V Range
INPUT FREQUENCY (MHz)
0
40
SFDR (dBFS)
50
70
80
90
110
10
50
70
1746 G15
60
100
40
90
100
20
30
60 80
–1dBFS
–6dBFS
–20dBFS
SFDR vs Input Frequency
and Amplitude, 2V Range
INPUT FREQUENCY (MHz)
0
40
SFDR (dBFS)
50
70
80
90
110
50
1746 G16
60
100
150
200
100
–1dBFS
–6dBFS
–20dBFS