Datasheet

13
21754312fa
LTC2175-12/
LTC2174-12/LTC2173-12
LTC2174-12: I
VDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB
LTC2174-12: Shorted Input
Histogram
LTC2174-12: SFDR vs Input Level,
f
IN
= 70MHz, 2V Range, 105Msps
Typical perForMance characTerisTics
OUTPUT CODE
2044
2000
0
6000
4000
COUNT
8000
16000
14000
12000
10000
18000
2046 20472045 2048
217512 G28
INPUT LEVEL (dBFS)
–80
60
50
40
30
20
10
0
80
70
SFDR (dBc AND dBFS)
90
100
110
–70
–60 –50 –40 –30 –20 –10 0
217512 G32
dBFS
dBc
INPUT FREQUENCY (MHz)
0
72
71
70
69
68
67
66
SNR (dBFS)
50
100 150 200 250 300 350
217512 G29
INPUT FREQUENCY (MHz)
0
90
85
80
75
70
65
95
SFDR (dBFS)
50
100 150 200 250 300 350
217512 G23a
LTC2174-12: SNR vs Input
Frequency, –1dB, 2V Range,
105Msps
LTC2174-12: SFDR vs Input
Frequency, –1dB, 2V Range,
105Msps
LTC2174-12: 8k Point FFT, f
IN
= 70MHz
–1dBFS, 105Msps
LTC2174-12: 8k Point FFT, f
IN
= 140MHz
–1dBFS, 105Msps
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40 50
217512 G25
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40 50
217512 G26
LTC2174-12: 8k Point 2-Tone FFT,
f
IN
= 70MHz, 75MHz, –1dBFS,
105Msps
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40 50
217512 G27
SAMPLE RATE (Msps)
230
220
210
200
190
180
170
160
I
VDD
(mA)
0 25 50 75 100
217512 G54
LTC2174-12: 8k Point FFT, f
IN
= 30MHz
–1dBFS, 105Msps
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40 50
217512 G24