LTC2271 데이터 시트보기 (PDF) - Linear Technology
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LTC2271 Datasheet PDF : 24 Pages
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LTC2271
TYPICAL PERFORMANCE CHARACTERISTICS
SNR vs Input Frequency, –1dBFS,
20Msps, 2.1V Range
85
84
83
SINGLE-ENDED
ENCODE
82
DIFFERENTIAL
81
ENCODE
80
79
0 20 40 60 80 100 120 140
INPUT FREQUENCY (MHz)
2271 G10
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)
2271 G13
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)
2271 G16
10
2nd, 3rd Harmonic vs Input
Frequency, –1dBFS, 20Msps,
2.1V Range
105
100
95
3RD
90
85
2ND
80
75
70
0 20 40 60 80 100 120 140
INPUT FREQUENCY (MHz)
2271 G11
IVDD vs Sample Rate, 5MHz,
–1dBFS Sine Wave Input on
Each Channel
100
95
90
85
80
0
5
10
15
20
SAMPLE RATE (Msps)
2271 G14
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)
2271 G17
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)
2271 G12
IOVDD vs Sample Rate, 5MHz,
–1dBFS Sine Wave Input on
Each Channel
45
4 LANE, 3.5mA
40
35
30
2 LANE, 3.5mA
25
4 LANE, 1.75mA
20
1 LANE, 3.5mA
15
2 LANE, 1.75mA
10
1 LANE, 1.75mA
5
0
5
10
15
20
SAMPLE RATE (Msps)
2271 G15
SNR, SFDR vs Sample Rate,
fIN = 5MHz, –1dBFS
110
100
SFDR
90
SNR
80
0
5
10
15
20
SAMPLE RATE (Msps)
2271 G18
2271f
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