LTC2175-14/
LTC2174-14/LTC2173-14
14
21754314fa
LTC2174-14: SNR vs SENSE,
fIN = 5MHz, –1dB
SENSE PIN (V)
0.6
71
68
69
70
67
66
72
73
74
SNR
(dBFS)
0.7
0.8
0.9
1.1
1.2
1.3
1
217514 G25
Typical perForMance characTerisTics
LTC2173-14: 8k Point 2-Tone FFT,
fIN = 70MHz, 75MHz, –1dBFS,
80Msps
LTC2173-14: Shorted Input
Histogram
LTC2173-14: 8k Point FFT, fIN = 30MHz
–1dBFS, 80Msps
LTC2173-14: 8k Point FFT, fIN = 70MHz
–1dBFS, 80Msps
LTC2173-14: 8k Point FFT, fIN = 140MHz
–1dBFS, 80Msps
LTC2173-14: Integral Nonlinearity
(INL)
LTC2173-14: Differential
Nonlinearity (DNL)
LTC2173-14: 8k Point FFT, fIN = 5MHz
–1dBFS, 80Msps
OUTPUT CODE
0
–1.0
–0.4
–0.2
–0.6
–0.8
DNL
ERROR
(LSB)
0
0.4
0.2
0.6
0.8
1.0
4096
8192
12288
16384
217514 G27
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
217514 G28
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
217514 G29
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
217514 G30
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
217514 G31
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
217514 G32
OUTPUT CODE
8184
1000
0
3000
2000
COUNT
4000
5000
6000
8186
8188
8190
8192
217514 G33
OUTPUT CODE
0
–2.0
–0.5
–1.0
–1.5
INL
ERROR
(LSB)
0
0.5
1.0
1.5
2.0
4096
8192
12288
16384
217514 G26
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