LTC2255_15 Datasheet, PDF (8/24 Pages) Linear Technology – 14-Bit, 125/105Msps Low Power 3V ADCs

LTC2255/LTC2254
TYPICAL PERFOR A CE CHARACTERISTICS
LTC2254: Typical INL,
2V Range, 105Msps
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
4096
8192
CODE
12288
16384
22554 G17
LTC2254: 8192 Point FFT,
f_IN = 30MHz, –1dB, 2V Range,
105Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40 50
FREQUENCY (MHz)
22554 G20
LTC2254: Typical DNL,
2V Range, 105Msps
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
4096
8192
CODE
12288 16384
22554 G018
LTC2254: 8192 Point FFT,
f_IN = 70MHz, –1dB, 2V Range,
105Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40
FREQUENCY (MHz)
50
22554 G21
LTC2254: 8192 Point FFT,
f_IN = 5MHz, –1dB, 2V Range,
105Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40
FREQUENCY (MHz)
50
22554 G19
LTC2254: 8192 Point FFT,
f_IN = 140MHz, –1dB, 2V Range,
105Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40 50
FREQUENCY (MHz)
22554 G22
LTC2254: 8192 Point 2-Tone FFT,
f_IN = 28.2MHz and 26.8MHz,
–1dB, 2V Range, 105Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40 50
FREQUENCY (MHz)
22554 G23
8
LTC2254: Grounded Input
Histogram, 105Msps
20000
18000
17646 ¹⁸⁰²⁷
16000
14000
12000
10000
11299
10516
8000
6000
4000
3380
3316
2000 _{3 54 581}
0
8183 8185
8187 8189
CODE
637 _{68 1}
8191 8193
22554 G24
LTC2254: SNR vs Input Frequency,
–1dB, 2V Range, 105Msps
75
74
73
72
71
70
69
68
67
66
65
0
50 100 150 200 250 300 350
INPUT FREQUENCY (MHz) 33554 G25
22554fa