LTC2270 Ver la hoja de datos (PDF) - Linear Technology
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LTC2270 Datasheet PDF : 36 Pages
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LTC2270
TYPICAL PERFORMANCE CHARACTERISTICS
SNR vs Input Frequency, –1dBFS,
20Msps, 2.1V Range
85
2nd, 3rd Harmonic vs Input
Frequency, –1dBFS, 20Msps,
2.1V Range
105
84
100
83
SINGLE-ENDED
95
ENCODE
90
82
DIFFERENTIAL
85
81
ENCODE
80
80
75
3RD
2ND
79
0 20 40 60 80 100 120 140
INPUT FREQUENCY (MHz)
2270 G10
70
0 20 40 60 80 100 120 140
INPUT FREQUENCY (MHz)
2270 G11
SFDR vs Input Level, fIN = 5MHz,
20Msps, 2.1V Range
130
dBFS
120
110
100
90
80
dBc
70
60
50
40
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
2270 G13
IVDD vs Sample Rate, 5MHz,
–1dBFS Sine Wave Input on
Each Channel
100
3.5mA LVDS
OUTPUTS
90
CMOS OUTPUTS
80
70
0
5
10
15
20
SAMPLE RATE (Msps)
2270 G14
SNR vs SENSE,
fIN = 5MHz, –1dBFS
85
84
83
82
81
80
79
78
77
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3
SENSE PIN (V)
2270 G16
SFDR vs Analog Input Common
Mode, fIN = 9.7MHz, 20Msps,
2.1V Range
100
VDD 1.9V
95
VDD 1.7V
90
85
80
0.6
0.7 0.8 0.9 1 1.1 1.2
INPUT COMMON MODE (V)
2270 G17
10
2nd, 3rd Harmonic vs Input
Frequency, –1dBFS, 20Msps,
1.05V Range
105
100
3RD
95
90
2ND
85
80
75
70
0
20 40 60 80 100 120 140
INPUT FREQUENCY (MHz)
2270 G12
IOVDD vs Sample Rate, 5MHz,
–1dBFS Sine Wave Input on
Each Channel
80
3.5mA LVDS
70
60
50
40
1.75mA LVDS
30
20
10
0
0
1.8V CMOS
5
10
15
SAMPLE RATE (Msps)
20
2270 G15
SNR, SFDR vs Sample Rate,
fIN = 5MHz, –1dBFS
110
100
SFDR
90
SNR
80
0
5
10
15
20
SAMPLE RATE (Msps)
2270 G18
2270f
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