Datasheet

LTC2175-12/
LTC2174-12/LTC2173-12
14
21754312fa
LTC2174-12: SNR vs SENSE,
f
IN
= 5MHz, –1dB
SENSE PIN (V)
0.6
71
68
69
70
67
66
72
SNR (dBFS)
0.7 0.8 0.9 1.1 1.2 1.31
217512 G35
Typical perForMance characTerisTics
LTC2173-12: 8k Point 2-Tone FFT,
f
IN
= 70MHz, 75MHz, –1dBFS,
80Msps
LTC2173-12: Shorted Input
Histogram
LTC2173-12: 8k Point FFT, f
IN
= 30MHz
–1dBFS, 80Msps
LTC2173-12: 8k Point FFT, f
IN
= 70MHz
–1dBFS, 80Msps
LTC2173-12: 8k Point FFT, f
IN
= 140MHz
–1dBFS, 80Msps
LTC2173-12: Integral Nonlinearity
(INL)
LTC2173-12: Differential
Nonlinearity (DNL)
LTC2173-12: 8k Point FFT, f
IN
= 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
1024
2048 3072 4096
217512 G42
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
217512 G43
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
217512 G44
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
217512 G45
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
217512 G46
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
217512 G47
OUTPUT CODE
2052
2000
4000
6000
8000
0
12000
10000
COUNT
14000
16000
18000
20542053 20562055
217512 G48
OUTPUT CODE
0
–1.0
–0.4
–0.6
–0.8
INL ERROR (LSB)
–0.2
0
0.4
0.6
0.2
0.8
1.0
1024
2048 3072 4096
217512 G41