ltc2258cuj-14 Linear Technology Corporation, ltc2258cuj-14 Datasheet - Page 13

• Manufacturer Part Number: ltc2258cuj-14
• Description: 14-bit, 65/40/25msps Ultralow Power 1.8v Adcs
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
–100
–110
–120
–100
–110
–120
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
74
73
72
71
70
69
68
67
66
0
0
0
LTC2256-14: SNR vs Input
Frequency, –1dB, 2V Range,
25Msps
0
0
LTC2256-14: 8k Point FFT, f
–1dBFS, 25Msps
LTC2256-14: 8k Point FFT, f
–1dBFS, 25Msps
50
INPUT FREQUENCY (MHz)
100
FREQUENCY (MHz)
FREQUENCY (MHz)
150
5
5
200
250
IN
IN
10
10
300
= 140MHz
= 5MHz
225814 G49
225814 G43
225814 G46
350
–100
–110
–120
–100
–110
–120
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
95
90
85
80
75
70
65
0
0
LTC2256-14: SFDR vs Input
Frequency, –1dB, 2V Range,
25Msps
0
0
0
LTC2256-14: 8k Point FFT, f
–1dBFS, 25Msps
LTC2256-14: 8k Point 2-Tone FFT,
f
25Msps
IN
= 68MHz, 69MHz, –1dBFS,
50
INPUT FREQUENCY (MHz)
100
FREQUENCY (MHz)
FREQUENCY (MHz)
5
5
150
200
250
LTC2257-14/LTC2256-14
IN
10
10
300
= 30MHz
225814 G44
225814 G47
225814 G50
350
–100
–110
–120
6000
3000
2000
1000
5000
4000
–50
–60
–70
–80
–90
–10
–20
–30
–40
110
100
90
80
70
60
50
40
30
20
10
0
0
0
8198
–80
0
LTC2256-14: SFDR vs Input Level,
f
LTC2256-14: 8k Point FFT, f
–1dBFS, 25Msps
LTC2256-14: Shorted Input
Histogram
IN
= 70MHz, 2V Range, 25Msps
–70 –60 –50 –40 –30 –20 –10
8200
LTC2258-14
INPUT LEVEL (dBFS)
FREQUENCY (MHz)
dBFS
OUTPUT CODE
5
8202
dBc
8204
IN
10
8206
13
= 70MHz
225814 G45
225814 G48
225814 G52
225814p
0