LTC2261-12
LTC2260-12/LTC2259-12
11
226112fc
LTC2261-12: IOVDD vs Sample
Rate, 5MHz Sine Wave Input,
–1dB, 5pF on Each Data Output
LTC2261-12: SNR vs SENSE,
fIN = 5MHz, –1dB
LTC2260-12: Integral Nonlinearity
(INL)
LTC2260-12: Differential
Nonlinearity (DNL)
LTC2260-12: 8k Point FFT, fIN = 5MHz
–1dBFS, 105Msps
LTC2260-12: 8k Point FFT, fIN = 30MHz
–1dBFS, 105Msps
LTC2260-12: 8k Point FFT, fIN = 70MHz
–1dBFS, 105Msps
LTC2260-12: 8k Point FFT, fIN = 140MHz
–1dBFS, 105Msps
Typical perForMance characTerisTics
SAMPLE RATE (Msps)
0
25
10
15
20
5
0
45
30
35
40
I OVDD
(mA)
25
50
75
100
125
226112 G14
1.75mA LVDS
1.8V CMOS
1.2V CMOS
3.5mA LVDS
SENSE PIN (V)
0.6
71
68
69
70
67
66
72
SNR
(dBFS)
0.7
0.8
0.9
1.1
1.2
1.3
1
226112 G15
OUTPUT CODE
0
–1.0
–0.4
–0.6
–0.8
INL
ERROR
(LSB)
–0.2
0
0.2
0.4
0.6
0.8
1.0
1024
2048
3072
4096
226112 G21
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 G22
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
50
226112 G23
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
50
226112 G24
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
50
226112 G25
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
50
226112 G26
SAMPLE RATE (Msps)
CMOS
0
71
68
69
70
67
72
SNR
(dBFS)
25
50
75
100
125
226112 G18
DDR CMOS
LVDS
LTC2261-12: SNR vs Sample Rate
and Digital Output Mode,
30MHz Sine Wave Input, –1dB