LTC2274I(RevB) 查看數據表（PDF） - Linear Technology
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LTC2274I Datasheet PDF : 40 Pages
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LTC2274
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 105Msps,
unless otherwise noted.
64k Point FFT, fIN = 250.2MHz,
–1dBFS, PGA = 1
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10 20 30 40 50
FREQUENCY (MHz)
2274 G19
SFDR (HD2 and HD3) vs
Input Frequency
105
100
95
90
85
PGA = 1
80 PGA = 0
75
70
65
0
100 200 300 400 500
INPUT FREQUENCY (MHz)
2274 G20
SNR vs Input Frequency
78
76
PGA = 0
74
72
PGA = 1
70
68
66
64
0
100 200 300 400 500
INPUT FREQUENCY (MHz)
2274 G21
10
SNR and SFDR vs Sample Rate,
fIN = 5.1MHz
110
105
SFDR
100
95
LIMIT
90
85
80
SNR
75
70
20
40
60
80 100 120
SAMPLE RATE (Msps)
2274 G22
SFDR vs Analog Input
Common Mode Voltage, 5MHz
and 70MHz, –1dBFS
110
105
5MHz
100
95
90
85
80
70MHz
75
70
65
60
0.50 0.75 1.00 1.25 1.50 1.75 2.00
ANALOG INPUT COMMON MODE VOLTAGE (V)
2274 G02
SNR and SFDR vs Supply Voltage
(VDD), fIN = 5.2MHz
110
105
SFDR
100
95
LOWER LIMIT
90
UPPER LIMIT
85
80
SNR
75
70
2.8
3.0
3.2
SUPPLY VOLTAGE (V)
3.4
2274 G23
IVDD vs Sample Rate, 5MHz Sine,
–1dBFS
420
410
400
390
380
370
360
350
340
330
320
310
300
290
0
40
80
SAMPLE RATE (Msps)
120
2274 G25
2274fb
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