LTC1750 查看數據表（PDF） - Linear Technology
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LTC1750 Datasheet PDF : 24 Pages
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LTC2255/LTC2254
TYPICAL PERFOR A CE CHARACTERISTICS
LTC2255: SFDR vs Input Frequency,
–1dB, 2V Range, 125Msps
100
95
90
85
80
75
70
65
0 50 100 150 200 250 300 350
INPUT FREQUENCY (MHz) 22554 G10
LTC2255: SNR and SFDR vs
Sample Rate, 2V Range,
fIN = 5MHz, –1dB
90
SFDR
80
SNR
70
60
50
0
20 40 60 80 100 120 140 160
SAMPLE RATE (Msps)
22554 G11
LTC2255: SNR vs Input Level,
fIN = 70MHz, 2V Range, 125Msps
80
dBFS
70
60
50
dBc
40
30
20
10
0
–70 –60
–50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22554 G13
LTC2255: SFDR vs Input Level,
fIN = 70MHz, 2V Range, 125Msps
110
100
dBFS
90
80
70
60
dBc
50
40
30
20
10
0
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22554 G14
LTC2255: IVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB
145
140
135
130
125
2V RANGE
120
1V RANGE
115
110
105
100
95
0 20 40 60 80 100 120 140
SAMPLE RATE (Msps)
22554 G15
LTC2255: IOVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB,
OVDD = 1.8V
8
7
6
5
4
3
2
1
0
0 20 40 60 80 100 120 140
SAMPLE RATE (Msps)
22554 G16
LTC2255: SNR vs SENSE,
fIN = 5MHz, –1dB
74
73
72
71
70
69
68
67
66
65
64
0.4 0.5 0.6 0.7 0.8 0.9
SENSE PIN (V)
1.0 1.1
22554 G32
22554fa
7
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