LTC2272(RevA) Ver la hoja de datos (PDF) - Linear Technology
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LTC2272 Datasheet PDF : 44 Pages
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LTC2273/LTC2272
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 80Msps,
unless otherwise noted.
LTC2273: 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
FREQUENCY (MHz)
22732 G19
LTC2273: SFDR vs Input
Frequency
105
100
95
90
85
PGA = 1
80
PGA = 0
75
70
65
0
100
200
300
400
INPUT FREQUENCY (MHz)
22732 G20
LTC2273: SNR vs Input Frequency
78
76
74
PGA = 1
PGA = 0
72
70
0
100
200
300
400
INPUT FREQUENCY (MHz)
22732 G21
LTC2273: SNR and SFDR vs
Sample Rate, fIN = 5.1MHz
110
LTC2273: SNR and SFDR vs
Supply Voltage (VDD),
fIN = 5.2MHz
110
105
SFDR
100
105
SFDR
100
95
95
90
90
85
85
80
SNR
75
80
SNR
75
70
20
40
60
80 100 120
SAMPLE RATE (Msps)
22732 G22
70
2.8
3.0
3.2
SUPPLY VOLTAGE (V)
3.4
22732 G23
LTC2273: SFDR vs Analog Input
Common Mode Voltage, 5MHz
and 70MHz, –1dBFS
110
105
5MHz
100
95
90
85
70MHz
80
75
70
65
60
0.50 0.75 1.00 1.25 1.50 1.75 2.00
ANALOG INPUT COMMON MODE VOLTAGE (V)
22732 G24
LTC2273: IVDD vs Sample Rate,
5MHz Sine, –1dBFS
400
VDD = 3.3V
360
VDD = 3.47V
320
VDD = 3.13V
280
240
20
45
70
95
SAMPLE RATE (Msps)
120
22732 G25
22732fa
10
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