Datasheet

LTC2258-14
LTC2257-14/LTC2256-14
10
225814fc
For more information www.linear.com/LTC2258-14For more information www.linear.com/LTC2258-14
Typical perForMance characTerisTics
LTC2258-14: Integral
Nonlinearity (INL)
LTC2258-14: Differential
Nonlinearity (DNL)
LTC2258-14: 8k Point FFT,
f
IN
= 5MHz, –1dBFS, 65Msps
OUTPUT CODE
0
–2.0
–0.5
–1.0
–1.5
INL ERROR (LSB)
0
0.5
1.0
1.5
2.0
4096
8192 12288 16384
225814 G01
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
4096
8192 12288 16384
225814 G02
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
225814 G03
0
10
20 30
LTC2258-14: 8k Point FFT,
f
IN
= 30MHz, –1dBFS, 65Msps
LTC2258-14: 8k Point FFT,
f
IN
= 70MHz, –1dBFS, 65Msps
LTC2258-14: 8k Point FFT,
f
IN
= 140MHz, –1dBFS, 65Msps
LTC2258-14: 8k Point 2-Tone FFT,
f
IN
= 68MHz, 69MHz, –1dBFS,
65Msps
LTC2258-14: Shorted Input
Histogram
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
225814 G04
10
20 30
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10 20 30
225814 G05
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30
225814 G06
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30
225814 G07
OUTPUT CODE
8197
1000
0
3000
2000
COUNT
4000
5000
6000
8199
8201 8203 8205
225814 G08
INPUT FREQUENCY (MHz)
0
72
71
70
69
68
67
66
74
73
SNR (dBFS)
50
100 150 200 250 300 350
225814 G09
LTC2258-14: SNR vs Input
Frequency, –1dB, 2V Range,
65Msps