LTC2272I View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2272I' PDF : 44 Pages View PDF
LTC2273/LTC2272
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 65Msps,
unless otherwise noted.
LTC2272: 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
FREQUENCY (MHz)
22732 G44
LTC2272: SFDR vs Input
Frequency
110
105
100
95
90
85
80
75
70
65
0
100
200
300
INPUT FREQUENCY (MHz)
400
22732 G45
LTC2272: SNR vs Input Frequency
78
76
74
72
70
0
100
200
300
400
INPUT FREQUENCY (MHz)
22732 G46
LTC2272: SNR and SFDR vs
Sample Rate, fIN = 5.2MHz
110
LTC2272: 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
80
SNR
75
75
70
20
40
60
80
SAMPLE RATE (Msps)
100
22732 G47
70
2.8
3.0
3.2
SUPPLY VOLTAGE (V)
3.4
22732 G48
LTC2272: 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 G49
LTC2272: IVDD vs Sample Rate,
5MHz Sine, –1dBFS
360
VDD = 3.3V
320
VDD = 3.47V
VDD = 3.13V
280
240
20
40
60
80
SAMPLE RATE (Msps)
100
22732 G50
22732f
13
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