LTC2204_15 Datasheet, PDF (10/36 Pages) Linear Technology – 16-Bit, 65Msps/40Msps ADCs

LTC2205/LTC2204
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2205: 64K Point FFT,
f_IN1 = 14.9MHz, –7dBFS,
f_IN2 = 20.1MHz, –7dBFS, PGA = 0
0
–20
– 40
– 60
– 80
–100
–120
–140
0
5 10 15 20 25 30
FREQUENCY (MHz)
22054 G28
LTC2205: SFDR vs Input Level,
f_IN = 5.1MHz,
DITH = 1, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G31
LTC2205: SFDR vs Input Level,
f_IN = 70.1MHz,
DITH = 0, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G34
10
LTC2205: 64K Point FFT,
f_IN1 = 64.1MHz, –7dBFS,
f_IN2 = 20.1MHz, –7dBFS, PGA = 0
0
–20
– 40
– 60
– 80
–100
–120
–140
0
5 10 15 20 25 30
FREQUENCY (MHz)
22054 G29
LTC2205: SFDR vs Input Level,
f_IN = 15.1MHz,
DITH = 0, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G32
LTC2205: SFDR vs Input Level,
f_IN = 70.1MHz,
DITH = 1, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G35
LTC2205: SFDR vs Input Level,
f_IN = 5.1MHz,
DITH = 0, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G30
LTC2205: SFDR vs Input Level,
f_IN = 15.1MHz,
DITH = 1, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G33
LTC2205: SFDR vs Input Level,
f_IN = 140.1MHz,
DITH = 0, RAND = 1, PGA = 0
130
120
110
100
90
80
70
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22054 G36
22054fc