Datasheet

LTC2293/LTC2292/LTC2291
10
229321fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC2291: 8192 Point 2-Tone FFT,
f
IN
= 10.9MHz and 13.8MHz,
–1dB, 2V Range, 25Msps
LTC2291: Grounded Input
Histogram, 25Msps
LTC2291: SNR vs Input Frequency,
–1dB, 2V Range, 25Msps
LTC2291: SFDR vs Input
Frequency, –1dB, 2V Range,
25Msps
LTC2291: SNR and SFDR vs
Sample Rate, 2V Range,
f
IN
= 5MHz, –1dB
LTC2291: SNR vs Input Level,
f
IN
= 5MHz, 2V Range, 25Msps
LTC2291: 8192 Point FFT,
f
IN
= 30MHz, –1dB, 2V Range,
25Msps
LTC2291: 8192 Point FFT,
f
IN
= 70MHz, –1dB, 2V Range,
25Msps
LTC2291: 8192 Point FFT,
f
IN
= 140MHz, –1dB, 2V Range,
25Msps
FREQUENCY (MHz)
0
AMPLITUDE (dB)
229321 G36
24 6810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE (dB)
229321 G37
24 6810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE (dB)
229321 G38
24 6810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE (dB)
229321 G39
246810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
CODE
COUNT
2050
229321 G40
2048 2049
70000
60000
50000
40000
30000
20000
10000
0
61758
1607
2155
INPUT FREQUENCY (MHz)
0
SNR (dBFS)
70
71
200
229321 G41
69
68
50
100
150
72
INPUT FREQUENCY (MHz)
0
100
95
90
85
80
75
70
65
150
229321 G42
50 100 200
SFDR (dBFS)
SAMPLE RATE (Msps)
0
SNR AND SFDR (dBFS)
110
100
90
80
70
60
40 50
229321 G43
10
20
30
SNR
SFDR
INPUT LEVEL (dBFS)
–60 –50
SNR (dBc AND dBFS)
40 –20–30
–10
0
229321 G44
80
70
60
50
40
30
20
10
0
dBFS
dBc