LTC2281IUP-TR Ver la hoja de datos (PDF) - Linear Technology
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LTC2281IUP-TR Datasheet PDF : 24 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LTC2281
SNR vs Input Frequency,
–1dB, 2V Range, 125Msps
65
64
63
62
61
60
59
58
57
56
55
0
50 100 150 200 250 300 350
INPUT FREQUENCY (MHz) 2281 G10
SFDR vs Input Frequency,
–1dB, 2V Range, 125Msps
95
90
85
80
75
70
65
0 50 100 150 200 250 300 350
INPUT FREQUENCY (MHz) 2281 G11
SNR and SFDR vs Sample Rate,
2V Range, fIN = 5MHz, –1dB
90
SFDR
80
70
SNR
60
50
0
20 40 60 80 100 120 140 160
SAMPLE RATE (Msps)
2281 G12
SNR vs Input Level,
fIN = 70MHz, 2V Range, 125Msps
80
70
dBFS
60
50
40
dBc
30
20
10
0
–50 –40 –30 –20 –10
0
INPUT LEVEL (dBFS)
2281 G13
SFDR vs Input Level,
fIN = 70MHz, 2V Range, 125Msps
100
90
dBFS
80
70
dBc
60
50
40
30
20
10
0
–50 –40 –30 –20 –10
0
INPUT LEVEL (dBFS)
2281 G14
IVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB
290
280
270
260
250
2V RANGE
240
1V RANGE
230
220
210
200
190
0
20 40 60 80 100 120 140
SAMPLE RATE (Msps)
2281 G15
IOVDD vs Sample Rate, 5MHz Sine
Wave Input, –1dB, 0VDD = 1.8V
16
14
12
10
8
6
4
2
0
0 20 40 60 80 100 120 140
SAMPLE RATE (Msps)
2281 G16
SNR vs SENSE, fIN = 5MHz, –1dB
61.8
61.6
61.4
61.2
61.0
60.8
60.6
60.4
60.2
0.4 0.5
0.6 0.7 0.8 0.9
SENSE PIN (V)
1 1.1
2281 G17
2281fb
7
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