Datasheet

LTC2261-12
LTC2260-12/LTC2259-12
13
226112fc
For more information www.linear.com/LTC2261-12
Typical perForMance characTerisTics
LTC2259-12: 8k Point 2-Tone FFT,
f
IN
= 70MHz, 75MHz, –1dBFS,
80Msps
LTC2259-12: Shorted Input
Histogram
LTC2259-12: 8k Point FFT, f
IN
= 30MHz
–1dBFS, 80Msps
LTC2259-12: 8k Point FFT, f
IN
= 70MHz
–1dBFS, 80Msps
LTC2259-12: 8k Point FFT, f
IN
= 140MHz
–1dBFS, 80Msps
LTC2259-12: Differential
Nonlinearity (DNL)
LTC2259-12: 8k Point FFT, f
IN
= 5MHz
–1dBFS, 80Msps
OUTPUT CODE
0
–1.0
–0.4
–0.2
–0.6
–0.8
DNL ERROR (LSB)
0
0.4
0.2
0.6
0.8
1.0
1024
2048 3072 4096
226112 G42
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
226112 G43
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
226112 G44
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
226112 G45
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
226114 G46
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30 40
226114 G47
OUTPUT CODE
2052
2000
4000
6000
8000
0
12000
10000
COUNT
14000
16000
18000
2054 2056
226112 G48
INPUT FREQUENCY (MHz)
0
72
71
70
69
68
67
66
SNR (dBFS)
50
100 150 200 250 300 350
226112 G49
INPUT FREQUENCY (MHz)
0
90
85
80
75
70
65
95
SFDR (dBFS)
50
100 150 200 250 300 350
226112 G50
LTC2259-12: SNR vs Input
Frequency, –1dB, 2V Range,
80Msps
LTC2259-12: SFDR vs Input
Frequency, –1dB, 2V Range,
80Msps