Datasheet

LTC2258-12
LTC2257-12/LTC2256-12
10
225812fd
For more information www.linear.com/LTC2258-12
Typical perForMance characTerisTics
LTC2258-12: Integral
Nonlinearity (INL)
LTC2258-12: Differential
Nonlinearity (DNL)
LTC2258-12: 8k Point FFT,
f
IN
= 5MHz, –1dBFS, 65Msps
OUTPUT CODE
0
–1.0
–0.4
–0.6
–0.8
INL ERROR (LSB)
–0.2
0
0.2
0.8
0.4
0.6
1.0
1024
2048 3072 4096
225812 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
1024
2048 3072 4096
225812 G02
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
225812 G03
0 10 20 30
LTC2258-12: 8k Point FFT,
f
IN
= 30MHz, –1dBFS, 65Msps
LTC2258-12: 8k Point FFT,
f
IN
= 70MHz, –1dBFS, 65Msps
LTC2258-12: 8k Point FFT,
f
IN
= 140MHz, –1dBFS, 65Msps
LTC2258-12: 8k Point 2-Tone FFT,
f
IN
= 68MHz, 69MHz, –1dBFS,
65Msps
LTC2258-12: Shorted Input
Histogram
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
225812 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
225812 G05
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30
225812 G06
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20 30
225812 G07
OUTPUT CODE
2049
2000
0
10000
8000
6000
4000
COUNT
12000
16000
14000
18000
2051 2053
225812 G08
INPUT FREQUENCY (MHz)
0
72
71
70
69
68
67
66
SNR (dBFS)
50
100 150 200 250 300 350
225812 G09
LTC2258-12: SNR vs Input
Frequency, –1dB, 2V Range,
65Msps