Datasheet

9
21421014fa
LTC2142-14/
LTC2141-14/LTC2140-14
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2142-14: Integral
Nonlinearity (INL)
LTC2142-14: Differential
Nonlinearity (DNL)
LTC2142-14: 64k Point FFT,
f
IN
= 5MHz, –1dBFS, 65Msps
LTC2142-14: 64k Point FFT,
f
IN
= 30MHz, –1dBFS, 65Msps
LTC2142-14: 64k Point FFT,
f
IN
= 70MHz, –1dBFS, 65Msps
LTC2142-14: 64k Point FFT,
f
IN
= 140MHz, –1dBFS, 65Msps
LTC2142-14: 64k Point 2-Tone
FFT, f
IN
= 69MHz, 70MHz,
–7dBFS, 65Msps
LTC2142-14: Shorted Input
Histogram
LTC2142-14: SNR vs Input
Frequency, –1dBFS, 65Msps,
2V Range
OUTPUT CODE
–2.0
–1.0
–0.5
–1.5
INL ERROR (LSB)
0
0.5
1.0
1.5
2.0
21421014 G01
0
4096
8192 12288 16384
OUTPUT CODE
–1.0
–0.4
–0.2
–0.6
–0.8
DNL ERROR (LSB)
0
0.4
0.2
0.6
0.8
1.0
21421014 G02
0
4096
8192 12288 16384
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
21421014 G03
0102030
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
21421014 G04
0102030
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
21421014 G05
0102030
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
21421014 G06
0102030
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
21421014 G07
0
5
10 15 20 25 30
OUTPUT CODE
8183
0
2000
1000
COUNT
3000
4000
6000
5000
8187 819181898185
21421014 G08
INPUT FREQUENCY (MHz)
0
71
70
69
74
72
73
SNR (dBFS)
50 100 150 200 250 300
21421014 G09
SINGLE-ENDED
ENCODE
DIFFERENTIAL
ENCODE