
LTC2281
6
2281fb
TYPICAL PERFORMANCE CHARACTERISTICS
Crosstalk vs Input Frequency
Typical INL, 2V Range, 125Msps
Typical DNL, 2V Range, 125Msps
8192 Point FFT, fIN = 5MHz,
–1dB, 2V Range, 125Msps
8192 Point FFT, fIN = 30MHz,
–1dB, 2V Range, 125Msps
8192 Point FFT, fIN = 70MHz,
–1dB, 2V Range, 125Msps
8192 Point FFT, fIN = 140MHz,
–1dB, 2V Range, 125Msps
8192 Point 2-Tone FFT,
fIN = 28.2MHz and 26.8MHz,
–1dB, 2V Range, 125Msps
Grounded Input
Histogram, 125Msps
INPUT FREQUENCY (MHz)
0
–130
CROSST
ALK
(dB)
–125
–120
–115
–110
–105
–100
20
40
60
80
2281 G01
100
CODE
0
INL
ERROR
(LSB)
768
2281 G02
256
512
1024
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
CODE
0
DNL
ERROR
(LSB)
768
2281 G03
256
512
1024
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
FREQUENCY (MHz)
0
AMPLITUDE
(dB)
2281 G04
10
20
30
40
50
60
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE
(dB)
2281 G05
10
20
30
40
50
60
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE
(dB)
2281 G06
10
20
30
40
50
60
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE
(dB)
2281 G07
10
20
30
40
50
60
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE
(dB)
2281 G08
10
20
30
40
50
60
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
CODE
70000
60000
50000
40000
30000
20000
10000
0
511
65528
512
2281 G09
510
0
COUNT